| - | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | Y | Z |
| Athlete | Sex | First Appearance | Last Appearance | Appearances | Colleges | Race Types |
|---|---|---|---|---|---|---|
| Daithi MacAnBhairaire | m | 1993-03-06 | 1994-02-19 | 2 | UU | XC |
| Dara MacCathaigh | m | 2002-11-16 | 2003-03-09 | 4 | CIT | 1500m, 3000m, Road, XC |
| Sean MacCready | m | 2002-12-06 | 2002-12-07 | 2 | TCD | 3000m |
| Daithi MacDomhnaill | m | 1983-05-06 | 1987-05-09 | 5 | UCD | HT |
| Tomas MacDomhnaill | m | 2002-03-09 | 2002-03-09 | 1 | UL | XC |
| Colin MacDonald | m | 1993-06-22 | 1993-06-22 | 3 | SU | 100m, LJ, TJ |
| Patrick Mace | m | 1998-02-28 | 1998-02-28 | 1 | NUIM | XC |
| D. ST. C. MacKenzie | m | 1923-06-02 | 1923-06-02 | 1 | TCD | Mile |
| Stephen Macklin | m | 2001-11-07 | 2004-04-17 | 9 | UCC | 3000mSC, 3000mW, JT, Road, XC |
| Andy MacLaughlin | m | 2004-12-03 | 2004-12-04 | 1 | NUIM | 60m |
| Flannan MacMahon | m | 2003-03-09 | 2003-03-09 | 1 | CIT | XC |
| Carl MacNamara | m | 2005-04-22 | 2009-04-25 | 32 | CIT | 100m, 200m, 4x100m, 4x200m, 4x400m, 60m |
| Darragh MacNamara | m | 1993-12-04 | 1993-12-04 | 1 | UCD | XC |
| M. MacNamara | m | 1954-05-22 | 1962-05-17 | 13 | UCG | DT, HJ, JT*, LJ, SP |
| Jeremy Madden | m | 1994-01-21 | 1995-04-22 | 5 | UU | 60m, 60mH, PV, SP |
| Peter Madsen | m | 2002-11-16 | 2005-02-26 | 10 | IUAA, TCD | 1500m, 800m, Road, XC |
| Adam Magee | m | 2009-11-14 | 2010-04-24 | 3 | UCD | 400m, 400mH, Road |
| Fergus Magee | m | 2000-12-01 | 2000-12-02 | 1 | UCD | HJ |
| J. Magee | m | 1970-05-09 | 1972-05-06 | 4 | UCD | HJ, LJ, TJ |
| Jonathan Magee | m | 1999-06-22 | 2000-06-20 | 4 | Guest, NI U23 | 100m, 200m |
| Niall Magee | m | 1993-03-06 | 1993-03-06 | 1 | UL | XC |
| F. Magill | m | 1993-06-22 | 1994-06-28 | 2 | NI U20 | PV |
| Mark Magill | m | 2003-06-10 | 2003-06-10 | 1 | Guest | 1500m |
| Lee Maginnis | m | 1996-02-09 | 1996-02-10 | 1 | QUB | 800m |
| Stephen Maginnis | m | 1999-04-23 | 1999-12-04 | 3 | UU | 800m |
| Paul Magnier | m | 1966-05-07 | 1971-05-08 | 3 | UCD | TJ |
| Eamon Maher | m | 2007-11-17 | 2010-03-13 | 4 | CIT | Road, XC |
| J. Maher | m | 1977-05-06 | 1980-05-03 | 4 | TCD | 10000m |
| James Maher | m | 2009-11-14 | 2010-04-24 | 4 | WIT | 800m, Road, XC |
| John Maher | m | 1993-03-06 | 1994-02-19 | 4 | TCD | 3000m, XC |
| Keith Maher | m | 2009-11-14 | 2010-04-24 | 6 | UL | 800m, Road, XC |
| Michael Maher | m | 2007-11-17 | 2010-03-13 | 7 | UCC | 5000m, Road, XC |
| Paddy Maher | m | 1995-12-16 | 1996-02-10 | 2 | UCG | 800m, XC |
| Shane Maher | m | 2009-11-14 | 2010-04-24 | 5 | UCC | 10000m, 3000m, Road, SP, XC |
| Noel Mahon | m | 2005-11-19 | 2005-11-19 | 1 | UCD | Road |
| Alan Mahoney | m | 1996-12-13 | 1996-12-14 | 6 | WIT | 200m, 4x200m, 60m, LJ |
| S. Mahony | m | 1931-05-30 | 1931-05-30 | 2 | UCG | 100y, 220y |
| B. Mailey | m | 1970-05-09 | 1970-05-09 | 1 | QUB | 400mH |
| David Majekodunmi | m | 1996-02-09 | 1998-04-25 | 17 | TCD | 200m, 400m, 4x100m, 4x200m, 60m, LJ |
| Dave Maley | m | 1994-02-19 | 2002-11-16 | 14 | Guest, IUAA, QUB | 10000m, 1500m, 3000mSC, 5000m, DT, Road, XC |
| Andrew Malone | m | 1999-03-06 | 1999-11-13 | 2 | TCD | Road, XC |
| Derek Malone | m | 1999-12-03 | 2002-11-16 | 4 | Guest, UL | 5000m, 800m, Road |
| Enda Malone | m | 2001-12-07 | 2002-04-20 | 2 | WIT | 3000m, 3000mSC |
| Ger Malone | m | 1999-11-13 | 1999-11-13 | 1 | UL | Road |
| L. Maloney | m | 1956-05-16 | 1957-05-18 | 2 | UCD | 120yH |
| Pat Maloney | m | 1998-12-11 | 2000-02-26 | 5 | UCC | 3000m, 800m, SP, XC |
| Luke Mangan | m | 2010-02-13 | 2010-04-24 | 6 | DCU | 16kgWfD, DT, HT, SP |
| Mick A. Mangan | m | 1949-05-26 | 1952-05-22 | 6 | UCG | DT, SP |
| Pat Mangle | m | 1998-04-24 | 1998-04-25 | 1 | DIT | SP |
| Victor Maniak | m | 1961-05-06 | 1961-05-06 | 2 | UCD | 100y, 220y |
| Sean Manning | m | 2000-12-01 | 2004-04-17 | 32 | IUAA, UCC | 100m, 200m, 4x100m, 4x200m, 4x400m, 60m |
| D. Mannion | m | 1920-06-05 | 1921-06-04 | 3 | UCD | 880y, Mile |
| Martin Mannion | m | 1986-05-02 | 1986-05-03 | 1 | UCD | 1500m |
| Paddy Mannion | m | 1952-05-22 | 1952-05-22 | 1 | UCD | JT* |
| Paddy J. Mannion | m | 1951-05-26 | 1951-05-26 | 2 | UCD | JT*, SP |
| Ken Mannock | m | 2000-11-12 | 2000-11-12 | 1 | NUIM | Road |
| Philip Mansfield | m | 2005-11-19 | 2006-02-18 | 2 | UCD | Road, XC |
| Daniel Mantle | m | 1998-04-24 | 2001-04-21 | 7 | IUAA, TCD | 4x100m, JT |
| Cheung Mao Li | m | 1992-04-24 | 1992-04-25 | 1 | UCC | 110mH |
| José Maria Ruiz | m | 1996-02-09 | 1996-02-10 | 2 | TCD | 1500m, 3000m |
| Ray Marker | m | 1995-06-20 | 1995-06-20 | 1 | H & Y | SP |
| Peter Markey | m | 1978-05-05 | 1980-05-03 | 4 | UCD | 1500m, 800m |
| Forename Marks | m | 1922-06-10 | 1922-06-10 | 1 | TCD | 3 Miles |
| Conor Marlin | m | 2006-04-21 | 2006-04-22 | 1 | UU | 3000mW |
| W. Marmion | m | 1914-06-06 | 1914-06-06 | 1 | UCD | 120yH |
| D. Marrs | m | 1983-05-06 | 1983-05-07 | 2 | QUB | DT, SP |
| Francis Marsh | m | 2000-03-11 | 2008-04-19 | 8 | NI U23, UU | 1500m, 4x400m, 5000m, Road, XC |
| Brendan Marshall | m | 2006-12-02 | 2010-04-24 | 6 | DCU | 4x100m, 60m, LJ |
| Patrick Marshall | m | 1996-02-09 | 2004-11-20 | 3 | NUIM, SPM | 3000m, Road, XC |
| Connor Martin | m | 2000-11-12 | 2000-11-12 | 1 | QUB | Road |
| H.M. Martin | m | 1922-06-10 | 1923-06-02 | 2 | TCD | LJ |
| Henry M. Martin | m | 1921-06-04 | 1921-06-04 | 1 | TCD | LJ |
| Jack Martin | m | 2010-02-13 | 2010-03-13 | 2 | NUIG | 3000m, XC |
| Padraig Martin | m | 1993-04-23 | 1995-06-20 | 6 | IUAA, UU | LJ, TJ |
| R. Martin | m | 1970-05-09 | 1971-05-08 | 2 | UCD | HJ |
| Daniel Martinez | m | 1999-04-23 | 1999-04-24 | 4 | QUB | 3000mSC, 4x400m, 5000m |
| Gavin Massingham | m | 2009-11-14 | 2009-11-14 | 1 | QUB | Road |
| Dave Mathews | m | 2004-04-16 | 2004-04-17 | 3 | QUB | 200m, 4x100m, DT |
| D. Matthew | m | 1994-06-28 | 1994-06-28 | 1 | NI U20 | JT |
| Breffini Matthews | m | 1991-05-03 | 1992-04-25 | 2 | UCD | PV |
| D. Matthews | m | 1995-06-20 | 1995-06-20 | 1 | Guest | JT |
| David Matthews | m | 1993-04-23 | 2001-06-19 | 15 | Guest, UCD | 4x400m, 800m, Road, XC |
| James Matthews | m | 1998-04-24 | 1999-04-24 | 5 | DIT, Guest | 200m, 400mH, 4x100m |
| Owain Matthews | m | 2009-03-28 | 2009-03-28 | 1 | Wales | XC |
| Philip Matthews | m | 2007-11-17 | 2007-11-17 | 1 | UCD | Road |
| Thomas Maunsell | m | 2004-02-28 | 2008-03-08 | 14 | CIT | 1500m, 3000m, 5000m, Road, XC |
| Andrew Maxwell | m | 1997-06-24 | 1999-06-22 | 2 | NI U23 | 200m |
| Ciaran Maxwell | m | 1997-12-12 | 1997-12-13 | 1 | IT Tralee | 3000m |
| Kevin Maybury | m | 2009-03-07 | 2009-04-25 | 3 | CIT | 10000m, LJ, XC |
| P. Maye | m | 1961-05-06 | 1961-05-06 | 1 | UCD | LJ |
| J. Mayes | m | 1987-05-08 | 1987-05-09 | 1 | NIHEL | 800m |
| Hugh Mc Cann | m | 2006-11-18 | 2006-11-18 | 1 | UCD | Road |
| Thomas Mc Cluskey | m | 2006-11-18 | 2006-11-18 | 1 | UCD | Road |
| John Mc Dermott | m | 2006-12-02 | 2009-02-15 | 6 | UCD | 200m, 4x100m, 4x200m |
| Michael Mc Diarmada | m | 2009-11-14 | 2010-03-13 | 2 | DIT | Road, XC |
| Micheal Mc Diarmuid | m | 2007-11-17 | 2008-03-08 | 2 | DIT | Road, XC |
| Cormac Mc Donnell | m | 2009-02-14 | 2009-02-15 | 1 | NUIG | 800m |
| Donall Mc Gee | m | 2008-03-08 | 2008-03-08 | 1 | IT Sligo | XC |
| Kevin Mc Gonigle | m | 2007-04-13 | 2007-04-14 | 1 | UCD | JT |
| Pauric Mc Laughlin | m | 2009-11-14 | 2009-11-14 | 1 | DIT | Road |
| John McAdorey | m | 1996-06-25 | 1996-06-25 | 1 | NI U23 | 100m |
| G. McAleer | m | 1925-06-06 | 1925-06-06 | 2 | UCD | 120yH |
| Niall McAlinden | m | 2004-11-20 | 2005-02-26 | 3 | TCD | Road, XC |
| Joe McAlister | m | 2006-11-18 | 2007-11-17 | 2 | QUB | Road |
| Dominic McAllister | m | 2000-06-20 | 2005-06-07 | 7 | Guest, NI U23 | 1500m, 800m |
| J. McAllister | m | 1975-05-02 | 1975-05-03 | 1 | QUB | TJ |
| Joe McAllister | m | 2000-06-20 | 2000-06-20 | 1 | NI U23 | 1500m |
| Michael McArdle | m | 1999-12-03 | 2000-12-02 | 8 | UCD | 200m, 400m, 4x200m, 60m |
| Neil McArdle | m | 2002-06-18 | 2002-06-18 | 2 | Guest, NI U23 | LJ, TJ |
| S. McArthur | m | 1978-05-05 | 1978-05-06 | 1 | QUB | 3000mSC |
| Stephen McArthur | m | 1997-11-22 | 2000-11-12 | 10 | Dublin Colleges, TCD | 5000m, Road, XC |
| P.J. McAtamney | m | 1920-06-05 | 1920-06-05 | 1 | QUB | SP |
| A. McAuley | m | 1972-05-05 | 1972-05-06 | 1 | QUB | 800m |
| Paul McAuley | m | 1993-02-12 | 1993-02-12 | 1 | UCD | 60mH |
| Scott McAuley | m | 2005-06-07 | 2005-06-07 | 1 | NI U23 | LJ |
| Aaron McAvoy | m | 2002-06-18 | 2002-06-18 | 1 | NI U23 | 400m |
| David McAvoy | m | 1999-06-22 | 1999-06-22 | 1 | NI U23 | HJ |
| Robert McAvoy | m | 2005-06-07 | 2005-06-07 | 1 | NI U23 | 400mH |
| Darren McBrearty | m | 2010-02-13 | 2010-02-13 | 2 | DCU | 800m |
| Kieran McBrearty | m | 2004-02-06 | 2004-02-07 | 2 | Guest | HJ, TJ |
| Declan McBride | m | 2004-04-16 | 2004-04-17 | 3 | Guest | 110mH, CE, SP |
| Gavin McBride | m | 2000-06-20 | 2004-06-08 | 35 | IUAA, NI U23, QUB | 1500m, 3000mSC, 35lbWfD, 400m, 4x100m, 4x400m, 800m, DT, HT, JT, PV, Road, SP, XC |
| Neil McBride | m | 1998-06-23 | 1998-06-23 | 1 | NI U23 | JT |
| S. McBride | m | 1983-05-06 | 1983-05-07 | 1 | QUB | 100m |
| Sean McBride | m | 1972-05-05 | 1972-05-06 | 1 | UCD | 1500m |
| Sean McBride | m | 2006-11-18 | 2006-11-18 | 1 | TCD | Road |
| Stephen McBride | m | 1985-05-03 | 1985-05-04 | 2 | TCD | 100m, 200m |
| W. McC. Ross | m | 1931-05-30 | 1933-05-27 | 4 | QUB | DT, SP |
| Ciaran McCabe | m | 2003-11-22 | 2009-04-25 | 7 | Guest, IT Tralee | 100m, 200m, 400m, HJ, LJ, Road |
| Francis McCaffrey | m | 1998-06-23 | 1998-06-23 | 1 | NI U23 | 800m |
| Stuart McCallum | m | 1998-06-23 | 2001-06-19 | 4 | Guest, SU | LJ, TJ |
| L. McCandless | m | 1914-06-06 | 1914-06-06 | 2 | QUB | 440y, 880y |
| Donal McCann | m | 2009-02-14 | 2010-02-13 | 6 | NUIG | 4x200m, 60mH, CE, HJ, LJ, SP |
| J. McCann | m | 1971-05-07 | 1971-05-08 | 1 | UCD | 800m |
| Owen McCann | m | 1999-06-22 | 1999-06-22 | 1 | NI U23 | SP |
| S. McCann | m | 1972-05-05 | 1972-05-06 | 1 | UCG | HT |
| Seamus McCann | m | 1985-05-03 | 1988-04-30 | 4 | UU | 1500m |
| Niall McCarmack | m | 2009-11-14 | 2009-11-14 | 1 | UL | Road |
| Barry McCarron | m | 2005-11-19 | 2005-12-11 | 2 | UCD | 800m, Road |
| Ciaran McCarthy | m | 1993-04-23 | 1996-04-20 | 9 | IUAA, QUB | 110mH, 60mH |
| Ciaran McCarthy | m | 1989-05-05 | 1991-05-04 | 2 | UCD | 100m, 110mH |
| Colin McCarthy | m | 2008-11-15 | 2008-11-15 | 1 | NUIM | Road |
| Conor McCarthy | m | 1955-05-19 | 1957-05-18 | 4 | UCD | DT, SP |
| D. McCarthy | m | 1925-06-06 | 1925-06-06 | 2 | UCC | 120yH, LJ |
| D.A. McCarthy | m | 1912-06-03 | 1914-06-06 | 6 | UCC | 440y, 880y |
| D.J. McCarthy | m | 1926-06-05 | 1926-06-05 | 1 | UCC | 120yH |
| David McCarthy | m | 2001-12-07 | 2010-04-24 | 48 | UL | 200m, 400m, 4x100m, 4x200m, 4x400m, 800m, Road |
| Diarmuid McCarthy | m | 1999-12-03 | 2000-04-15 | 5 | CIT | 100m, 200m, 4x200m, 60m |
| Eoin McCarthy | m | 1996-12-13 | 1996-12-14 | 3 | UL | 2000mW, 60m |
| Eoin McCarthy | m | 2004-11-20 | 2005-04-23 | 3 | CIT | 1500m, Road, XC |
| J. McCarthy | m | 1926-06-05 | 1926-06-05 | 1 | UCC | LJ |
| J. McCarthy | m | 1965-05-08 | 1965-05-08 | 1 | UCC | DT |
| J.W. McCarthy | m | 1930-06-07 | 1930-06-07 | 1 | UCC | 100y |
| James McCarthy | m | 2004-02-28 | 2006-04-22 | 13 | CIT | 1500m, 4x100m, 4x400m, 5000m, 800m, Road, XC |
| Kieran McCarthy | m | 1996-02-09 | 1996-12-14 | 4 | IUAA, QUB | 110mH, 60mH |
| Kieran McCarthy | m | 1993-02-12 | 1993-02-12 | 1 | UCD | 60mH |
| M. McCarthy | m | 1982-04-30 | 1984-05-05 | 2 | UCC | SP |
| Michael McCarthy | m | 1999-11-13 | 2000-02-26 | 4 | CIT | 1500m, LJ, Road, XC |
| Michael McCarthy | m | 2004-02-06 | 2007-12-09 | 30 | TCD | 16kgWfD, 200m, 35lbWfD, 400m, 4x200m, 60m, 60mH, CE, HJ, LJ, PV, SP, TJ |
| N. McCarthy | m | 1980-05-02 | 1982-05-01 | 3 | UCC | SP, TJ |
| Owen McCarthy | m | 2005-04-22 | 2005-04-23 | 1 | CIT | 4x400m |
| T. McCarthy | m | 1921-06-04 | 1921-06-04 | 1 | UCC | LJ |
| T. J. McCarthy | m | 1954-05-22 | 1954-05-22 | 1 | UCD | LJ |
| Gareth McCartney | m | 1999-06-22 | 1999-06-22 | 1 | SU | SP |
| Dermot McCarvill | m | 1950-05-17 | 1953-07-15 | 3 | UCD | 220y, 440y |
| P.D. McCarvill | m | 1951-05-26 | 1952-05-22 | 2 | UCD | 440y |
| E. McCarville | m | 1954-05-22 | 1954-05-22 | 1 | UCD | HJ |
| Daragh McCashin | m | 2006-11-18 | 2010-04-24 | 10 | TCD | 3000m, 5000m, Road, XC |
| L. McCaugherty | m | 1993-06-22 | 1993-06-22 | 1 | NI U20 | 5000m |
| Conan McCaughey | m | 2008-11-15 | 2010-04-07 | 4 | UCD | 3000m, Road, XC |
| Paul McCauley | m | 1992-04-24 | 1994-04-23 | 10 | IUAA, UCD | 400m, 400mH, 60m |
| Scott McCauley | m | 2004-06-08 | 2005-06-07 | 2 | NI U23 | TJ |
| Paul McChryster | m | 1996-02-09 | 1996-02-10 | 1 | Guest | 60m |
| Paul McClaskey | m | 1999-11-13 | 1999-11-13 | 1 | UCC | Road |
| Andrew McClean | m | 1995-06-20 | 1995-06-20 | 1 | SU | HT |
| D. McClean | m | 1993-06-22 | 1993-06-22 | 1 | NI U20 | DT |
| G. McClean | m | 1980-05-02 | 1980-05-03 | 1 | QUB | SP |
| John McClean | m | 1873-05-19 | 1873-05-19 | 2 | QUB | 100y, 120yH |
| Robert McClean | m | 2002-12-06 | 2004-02-07 | 4 | QUB | 35lbWfD, SP |
| Stephen McCloskey | m | 1995-03-04 | 1995-03-04 | 1 | QUB | XC |
| Jonathan McCloy | m | 2004-06-08 | 2009-03-07 | 6 | NI U23, QUB | 2000mSC, 3000mSC, Road, XC |
| Kevin McCloy | m | 2003-06-10 | 2003-06-10 | 1 | NI U23 | 100m |
| Michael McConkey | m | 2002-06-18 | 2005-06-07 | 5 | Guest, NI U23 | DT, JT, SP |
| Philip McConnachie | m | 1993-06-22 | 1993-06-22 | 1 | SU | 800m |
| Brendan McConville | m | 1997-06-24 | 2001-06-19 | 14 | IUAA, NI U23, UU | 110mH, DT, HJ, PV |
| Alan McCormack | m | 2003-11-22 | 2008-11-15 | 14 | Guest, UCD | 10000m, 1500m, Road, XC |
| Brian McCormack | m | 1999-04-23 | 2000-12-02 | 4 | TCD | 200m, 4x100m, 60m |
| Eoin McCormack | m | 2005-11-19 | 2009-04-25 | 9 | DCU | 10000m, 2000mW, 3000mSC, 3000mW, Road, XC |
| P. McCormack | m | 1935-05-25 | 1936-05-30 | 4 | UCD | 100y, 220y |
| Shane McCormack | m | 1997-12-12 | 2000-04-15 | 5 | UL | 110mH, 400mH, 60mH, 800m, HJ |
| Shane McCormack | m | 2002-04-19 | 2002-04-20 | 1 | WIT | 400mH |
| Aidan McCormick | m | 2004-06-08 | 2004-06-08 | 1 | NI U23 | 5000m |
| Peter McCormick | m | 1993-06-22 | 1996-06-25 | 4 | Guest, NI U20, NI U23 | 1500m, 800m |
| Brian McCournagh | m | 2000-04-14 | 2000-04-15 | 1 | TCD | 200m |
| Anthony McCoy | m | 2005-11-19 | 2005-11-19 | 1 | TCD | Road |
| Bryan McCoy | m | 1993-06-22 | 1996-06-25 | 4 | NI U20, NI U23 | 400m |
| C.W.R. McCreary | m | 1932-05-28 | 1932-05-28 | 1 | QUB | 120yH |
| Anthony McCreery | m | 2006-12-02 | 2010-04-24 | 9 | DCU | 4x200m, JT, PV, SP |
| Conor McCrossan | m | 2010-02-13 | 2010-04-24 | 3 | NUIM | 110mH, 60mH |
| David McCuffin | m | 1994-01-21 | 1994-01-21 | 3 | UU | 200m, 60m |
| Barry McCullagh | m | 1998-12-11 | 2005-04-23 | 17 | IUAA, TCD | 35lbWfD, DT, HT, SP |
| J. McCullagh | m | 1929-06-01 | 1929-06-01 | 1 | UCD | Mile |
| Simon McCullagh | m | 1994-01-21 | 1996-02-10 | 3 | UU | 400m, 4x200m |
| Conor McCullough | m | 1998-06-23 | 1998-06-23 | 1 | Guest | Mile |
| Neil McCullough | m | 1993-06-22 | 1995-06-20 | 3 | Guest | PV |
| Damien McDaid | m | 1995-06-20 | 1996-06-25 | 2 | NI U23 | JT |
| Daragh McDaid | m | 1999-04-23 | 2004-04-17 | 19 | IUAA, UU | 1500m, 4x400m, 800m, Road, XC |
| Shane McDermot | m | 1999-11-13 | 1999-11-13 | 1 | UCD | Road |
| Aidan McDermott | m | 1992-04-24 | 1994-01-21 | 3 | TCD | 100m, LJ, TJ |
| Bobby McDermott | m | 2003-03-09 | 2003-03-09 | 1 | DCU | XC |
| Brian McDermott | m | 1993-04-23 | 1995-04-22 | 3 | DCU | JT |
| Brian McDermott | m | 2004-04-16 | 2006-04-22 | 4 | DCU, IUAA | JT |
| Chris McDermott | m | 2000-12-01 | 2007-12-09 | 43 | IUAA, NUIG | 110mH, 4x100m, 4x200m, 4x400m, 60m, 60mH, CE, HJ, JT, LJ, SP |
| Ciaran McDermott | m | 1999-11-13 | 1999-12-04 | 3 | NUIM | 4x200m, 800m, Road |
| Garreth McDermott | m | 1992-03-07 | 1992-03-07 | 1 | UCG | XC |
| Harry McDermott | m | 1985-05-03 | 1985-05-04 | 1 | TCD | 800m |
| Karl McDermott | m | 1999-12-03 | 1999-12-04 | 1 | IT Carlow | 1500m |
| P. McDermott | m | 1972-05-05 | 1972-05-06 | 1 | UCD | 10000m |
| Pat McDermott | m | 1995-12-16 | 1996-02-17 | 3 | TCD | 800m, XC |
| Robert McDermott | m | 2000-02-26 | 2002-04-20 | 5 | DCU | 4x400m, 800m, XC |
| Scott McDermott | m | 2000-06-20 | 2000-06-20 | 1 | SU | 800m |
| Sean McDermott | m | 1967-05-06 | 1967-05-06 | 1 | UCD | 440yH |
| Shane McDermott | m | 2000-02-05 | 2000-02-05 | 1 | UCD | XC |
| Michael McDiarmada | m | 2005-11-19 | 2005-11-19 | 1 | DIT | Road |
| Scot McDiarmuid | m | 2002-06-18 | 2002-06-18 | 1 | SU | 400m |
| Conor McDonagh | m | 2004-02-06 | 2006-04-22 | 11 | DIT | 200m, 4x100m, 4x200m, LJ |
| Conor McDonagh | m | 1998-12-11 | 1999-12-04 | 7 | DIT | 200m, 4x200m, 60m, LJ |
| Michael McDonagh | m | 1991-05-03 | 1991-05-04 | 1 | TCD | TJ |
| T. McDonagh | m | 1938-05-26 | 1938-05-26 | 1 | UCD | 880y |
| Angus McDonald | m | 1995-06-20 | 1995-06-20 | 2 | SU | 100m, 200m |
| D. McDonald | m | 1958-07-28 | 1958-07-28 | 1 | UCC | Mile |
| Ian McDonald | m | 1996-02-09 | 1997-02-01 | 2 | NUIM, SPM | 400m, XC |
| Ian McDonald | m | 2006-12-02 | 2008-04-19 | 8 | DCU | 110mH, 4x100m, 60m, 60mH |
| John McDonald | m | 2000-02-26 | 2000-02-26 | 1 | IT Carlow | XC |
| Kevin McDonald | m | 1996-02-09 | 1996-02-10 | 1 | UCG | HJ |
| Mark McDonald | m | 2008-11-15 | 2010-04-24 | 5 | DCU | 800m, Road, XC |
| Michael McDonald | m | 1985-05-03 | 1993-06-22 | 12 | IUAA, QUB | LJ, TJ |
| Peter McDonald | m | 2005-06-07 | 2005-06-07 | 1 | L U23 | JT |
| Peter McDonald | m | 2004-12-03 | 2006-04-22 | 3 | Dundalk IT | 100m, 60m, JT |
| Philip McDonald | m | 1995-12-16 | 1995-12-16 | 1 | Carlow RTC | XC |
| Aogan McDonnell | m | 2003-11-22 | 2003-11-22 | 1 | UCD | Road |
| Dara McDonnell | m | 2000-11-12 | 2000-11-12 | 1 | TCD | Road |
| Darragh McDonnell | m | 2001-02-24 | 2001-02-24 | 1 | TCD | XC |
| Eoin McDonnell | m | 2002-02-16 | 2004-04-17 | 14 | TCD | 110mH, 1500m, CE, HJ, LJ, Road, SP, XC |
| G.P. McDonnell | m | 1913-05-24 | 1913-05-24 | 1 | UCD | 880y |
| J. McDonnell | m | 1982-04-30 | 1982-05-01 | 1 | UCD | DT |
| J. McDonnell | m | 1956-05-16 | 1956-05-16 | 1 | UCC | Mile |
| Joseph McDonnell | m | 2004-02-06 | 2004-02-07 | 2 | Guest | 1500m |
| P. McDonnell | m | 1982-04-30 | 1982-05-01 | 1 | UCD | SP |
| Ray McDonnell | m | 1992-03-07 | 1992-03-07 | 1 | UCG | XC |
| Rory McDonnell | m | 2003-11-22 | 2004-02-28 | 2 | UCD | Road, XC |
| Stephen McDonnell | m | 1999-06-22 | 2000-06-20 | 2 | NI U23 | 400mH |
| Thomas McDonnell | m | 2007-12-08 | 2007-12-09 | 1 | WIT | 1500m |
| Alan McDougall | m | 1995-06-20 | 1995-06-20 | 1 | SU | 400m |
| Frazer McDougall | m | 1996-06-25 | 1998-06-23 | 6 | SU | 100m, 200m, JT |
| Mark McDowell | m | 1993-06-22 | 1995-06-20 | 2 | NI U20, NI U23 | 3000mSC |
| Matthew McDowell | m | 1996-06-25 | 1996-06-25 | 1 | NI U23 | 3000mSC |
| Robert McDowell | m | 1994-04-22 | 1994-06-28 | 2 | IUAA, UU | 100m |
| Paul McDwyer | m | 2005-11-19 | 2006-03-04 | 3 | UCD | Road, XC |
| Francis McElerean | m | 2006-12-02 | 2006-12-03 | 1 | UU | 1500m |
| E. McElligott | m | 1912-06-03 | 1912-06-03 | 1 | UCC | LJ |
| Alan McEntee | m | 2004-02-06 | 2005-04-23 | 7 | Dundalk IT | 100m, 60m, TJ |
| David Mcentee | m | 2000-02-26 | 2000-02-26 | 1 | Portobello | XC |
| A. McEvoy | m | 1983-05-06 | 1983-05-07 | 1 | QUB | 400mH |
| Chris McEvoy | m | 2000-04-14 | 2000-04-15 | 1 | RCSI | 3000mSC |
| D. McEvoy | m | 1947-05-21 | 1948-05-22 | 2 | UCD | HJ |
| Dave McEvoy | m | 2007-11-17 | 2010-04-24 | 6 | UCC | 5000m, Road, XC |
| Dominic McEvoy | m | 2005-11-19 | 2005-11-19 | 1 | DCU | Road |
| Sean McEvoy | m | 2003-11-22 | 2004-02-28 | 2 | UL | Road, XC |
| J. McFetters | m | 1926-06-05 | 1926-06-05 | 1 | QUB | 440y |
| Ger McGahey | m | 2009-04-24 | 2009-04-25 | 1 | WIT | 200m |
| Gerard McGahey | m | 2005-12-10 | 2009-02-15 | 13 | WIT | 100m, 200m, 400m, 4x100m, 4x200m, 4x400m, 60m |
| Trevor McGann | m | 2002-03-09 | 2002-03-09 | 1 | DIT | XC |
| N. McGara | m | 1976-04-30 | 1976-05-01 | 1 | QUB | 10000m |
| Joseph McGarr | m | 2009-03-07 | 2009-03-07 | 1 | WIT | XC |
| Paul McGarry | m | 1994-02-19 | 1995-12-16 | 3 | UU | XC |
| Conor McGee | m | 1999-12-03 | 2000-03-11 | 4 | IUAA, NUIM | 1500m, XC |
| Conor McGee | m | 1993-11-27 | 1994-01-21 | 2 | SPM | 800m, Road |
| Fintan McGee | m | 1999-11-13 | 2006-12-03 | 10 | Guest, TCD, UCD | 1500m, 3000m, 5000m, Road, XC |
| James McGee | m | 2000-04-14 | 2002-04-20 | 7 | CIT, IUAA | 10000m, 5000m, Road, XC |
| Niall McGee | m | 1995-03-04 | 1998-04-25 | 5 | UL | 10000m, XC |
| Mark McGill | m | 2002-06-18 | 2002-06-18 | 1 | NI U23 | 1500m |
| P. McGing | m | 1980-05-02 | 1980-05-03 | 1 | TCD | PV |
| Cahill McGingley | m | 1998-06-23 | 1998-06-23 | 1 | SU | SP |
| Brian McGinley | m | 2007-11-17 | 2010-04-24 | 6 | WIT | 10000m, 5000m, Road, XC |
| Cahill McGinley | m | 1998-06-23 | 1998-06-23 | 1 | SU | DT |
| Cathal McGinley | m | 2000-06-20 | 2001-06-19 | 11 | SU | 110mH, DT, HJ, HT, LJ, PV, SP, TJ |
| Colm McGinley | m | 1999-04-23 | 1999-04-24 | 1 | DIT | TJ |
| Eddie McGinley | m | 2001-06-19 | 2001-06-19 | 1 | NI U23 | 1500m |
| Eoin McGinley | m | 2002-11-16 | 2003-04-26 | 4 | UU | 4x400m, 5000m, Road, XC |
| A. McGinty | m | 1993-06-22 | 1993-06-22 | 1 | Guest | 1500m |
| Aaron McGinty | m | 1993-03-06 | 1993-03-06 | 1 | UU | XC |
| Emmet McGinty | m | 2009-03-07 | 2009-03-07 | 1 | UU | XC |
| M. McGlinchey | m | 1999-03-06 | 1999-04-24 | 2 | DIT | 1500m, XC |
| Michael McGlinchey | m | 2003-04-25 | 2003-11-22 | 2 | QUB | 5000m, Road |
| Patrick McGlinchey | m | 2005-06-07 | 2005-06-07 | 1 | NI U23 | PV |
| Cathal McGlynn | m | 2000-06-20 | 2000-06-20 | 1 | SU | 110mH |
| Trevor McGlynn | m | 1995-06-20 | 2000-06-20 | 3 | NI U23 | 110mH |
| Craig McGnigan | m | 2004-02-06 | 2004-02-07 | 1 | WIT | 400m |
| Barry McGonagle | m | 2004-04-16 | 2005-04-23 | 2 | UCD | DT, JT |
| Paul McGony | m | 1994-01-21 | 1994-01-21 | 1 | UU | 3000m |
| Niall McGovern | m | 1993-02-12 | 1993-02-12 | 1 | UL | 1500m |
| Niall McGovern | m | 1997-02-01 | 1997-02-01 | 1 | UL | XC |
| Brian McGowan | m | 2008-04-18 | 2008-04-19 | 4 | UL | 100m, 200m, 4x100m, 4x400m |
| James McGowan | m | 2000-11-12 | 2001-04-07 | 5 | TCD | 1500m, Road, XC |
| Gerald McGrahey | m | 2005-04-22 | 2005-04-23 | 2 | WIT | 400m, 4x100m |
| Tom McGrane | m | 1983-05-06 | 1983-05-07 | 1 | UCD | 400m |
| Conor McGrath | m | 1997-12-12 | 1997-12-13 | 1 | UL | 60mH |
| Conor McGrath | m | 1998-12-11 | 1999-12-04 | 4 | IT Carlow | 800m |
| Damien McGrath | m | 2002-11-16 | 2002-11-16 | 1 | NUIM | Road |
| Eoin McGrath | m | 2000-04-14 | 2004-04-17 | 30 | Guest, IUAA, UCD | 100m, 35lbWfD, 4x100m, 4x400m, 60m, HJ, LJ, SP, TJ |
| Gerry McGrath | m | 1987-05-08 | 1987-05-09 | 1 | ILSI | 10000m |
| John McGrath | m | 2007-12-08 | 2009-04-25 | 4 | WIT | 4x100m, 4x200m, 60m |
| Pat McGrath | m | 1960-05-14 | 1963-05-11 | 5 | UCC | 120yH, LJ, PV |
| Pius McGrath | m | 2007-04-13 | 2007-04-14 | 1 | UL | JT |
| Sean McGrath | m | 2009-11-14 | 2009-11-14 | 1 | QUB | Road |
| Steve McGregor | m | 1999-06-22 | 1999-06-22 | 1 | SU | 5000m |
| Damien McGroarty | m | 2005-12-10 | 2005-12-11 | 1 | NUIM | 60m |
| Michael Mcgroarty | m | 1998-12-11 | 1998-12-12 | 2 | NUIM | 60m |
| A. McGroary | m | 1974-05-03 | 1974-05-04 | 1 | QUB | 1500m |
| Peter McGrory | m | 2004-11-20 | 2004-11-20 | 1 | UCD | Road |
| Conor McGuinness | m | 2009-11-14 | 2010-04-24 | 3 | DCU | 3000mSC, Road, XC |
| Conor McGuinness | m | 2004-12-03 | 2005-04-23 | 3 | DCU | 200m, 400m, 4x100m |
| Fergal McGuinness | m | 1993-12-04 | 1994-01-21 | 3 | UCD | 400m, XC |
| Jim McGuinness | m | 1971-05-07 | 1974-05-04 | 7 | QUB | 1500m, 3000mSC, 800m |
| Lee McGuinness | m | 1995-12-16 | 1999-04-24 | 6 | QUB | 5000m, 800m, XC |
| Stephen McGuinness | m | 1998-12-11 | 1998-12-12 | 2 | UU | 800m |
| Vincent McGuinness | m | 2000-11-12 | 2002-03-09 | 9 | UL | 3000m, 5000m, Road, XC |
| Eoin McGuire | m | 2003-11-22 | 2003-11-22 | 1 | DIT | Road |
| T. McGuire | m | 1956-05-16 | 1956-05-16 | 1 | UCD | JT* |
| A. McHale | m | 1947-05-21 | 1949-05-26 | 2 | UCC | HJ, SP |
| Paul McHale | m | 1997-12-12 | 1999-04-24 | 8 | DIT | 400m, 400mH, 4x100m |
| Peter McHale | m | 1995-12-16 | 1997-12-13 | 2 | TCD | 3000m, XC |
| Aengus McHugh | m | 2001-11-07 | 2006-03-04 | 22 | TCD | 10000m, 3000m, 3000mW, 5000m, 800m, LJ, Road, TJ, XC |
| Terry McHugh | m | 1993-02-12 | 1993-02-12 | 1 | Guest | SP |
| Gary McIlkerney | m | 2002-06-18 | 2003-06-10 | 8 | Guest, NI U23, UU | 1500m, 4x400m, Road, XC |
| Alistair McIlroy | m | 2000-06-20 | 2000-06-20 | 1 | SU | LJ |
| Ben McIlroy | m | 2002-06-18 | 2002-06-18 | 2 | NI U23 | 110mH, LJ |
| James McIlroy | m | 2010-02-13 | 2010-04-24 | 7 | UU | 1500m, 4x200m, 800m, XC |
| James McIlroy | m | 1994-06-28 | 1997-06-24 | 2 | NI U20, NI U23 | 800m, TJ |
| Joachim McInerney | m | 2009-02-14 | 2009-02-15 | 2 | IT Tralee | 60m, HJ |
| Duncan McInnes | m | 1998-06-23 | 2000-06-20 | 3 | SU | HJ |
| J. McIntyre | m | 1971-05-07 | 1971-05-08 | 1 | UCD | 1500m |
| J. McIntyre | m | 1970-05-09 | 1970-05-09 | 1 | TCD | 1500m |
| Niall McIntyre | m | 1999-11-13 | 1999-11-13 | 1 | UL | Road |
| Jarron McKay | m | 1997-06-24 | 1997-06-24 | 1 | NI U23 | 3000mSC |
| R.H. McKeag | m | 1922-06-10 | 1923-06-02 | 4 | TCD | 100y, 440y, 880y, HJ |
| Robert H. McKeag | m | 1920-06-05 | 1921-06-04 | 2 | TCD | 880y |
| Jonathan McKee | m | 1998-02-28 | 2000-04-15 | 4 | UU | 1500m, 5000m, XC |
| Paul McKee | m | 1998-06-23 | 2005-06-07 | 2 | Guest, NI U23 | 400m |
| G. McKeever | m | 1966-05-07 | 1967-05-06 | 2 | UCD | 3 Miles, Mile |
| M. McKeever | m | 1912-06-03 | 1912-06-03 | 2 | UCD | 880y, Mile |
| A. McKenna | m | 1958-07-28 | 1958-07-28 | 1 | UCD | SP |
| Aaron McKenna | m | 1994-01-21 | 1996-02-10 | 10 | UL | 100m, 110mH, 400m, 4x200m, 60m, 60mH |
| Ciaran McKenna | m | 2009-11-14 | 2010-04-24 | 4 | DCU | 1500m, Road, XC |
| E. McKenna | m | 1983-05-06 | 1983-05-07 | 1 | QUB | HJ |
| J. McKenna | m | 1961-05-06 | 1961-05-06 | 1 | UCD | Mile |
| J. McKenna | m | 1957-05-18 | 1959-05-13 | 3 | UCC | 440y, 880y |
| J.J. McKenna | m | 1958-07-28 | 1958-07-28 | 2 | UCC | 440y, 880y |
| John McKenna | m | 1992-03-07 | 1992-03-07 | 1 | NUIM | XC |
| Mark McKenna | m | 2007-02-24 | 2008-03-08 | 2 | IT Sligo | XC |
| Mark McKenna | m | 2004-02-06 | 2005-02-26 | 3 | Dundalk IT | 10000m, 3000m, XC |
| Mark McKenna | m | 2001-12-07 | 2001-12-08 | 1 | IT Sligo | 3000m |
| D.H.C. McKenzie | m | 1922-06-10 | 1922-06-10 | 1 | TCD | Mile |
| Michael McKeon | m | 1972-05-05 | 1972-05-06 | 1 | UCD | 5000m |
| Ciaran McKeown | m | 2009-11-14 | 2009-11-14 | 1 | UU | Road |
| W.D. McKeown | m | 1920-06-05 | 1920-06-05 | 1 | QUB | Mile |
| Eoin McKinney | m | 1993-06-22 | 1996-06-25 | 2 | Guest, NI U20 | 200m, 400m |
| P. McKinney | m | 1983-05-06 | 1983-05-07 | 1 | QUB | HJ |
| K.J. McLaren | m | 1927-06-04 | 1928-06-02 | 3 | TCD | 120yH, HJ |
| John McLaughlin | m | 1974-05-03 | 1974-05-04 | 2 | QUB | 10000m, 5000m |
| Andrew McLean | m | 1995-06-20 | 1995-06-20 | 1 | SU | 3000mSC |
| B. McLean | m | 1984-05-04 | 1984-05-05 | 1 | UCD | HJ |
| Colm McLean | m | 1997-06-24 | 1997-06-24 | 1 | Guest | Mile |
| J. McLister | m | 1972-05-05 | 1974-05-04 | 3 | QUB | TJ |
| Edward McLoone | m | 2000-06-20 | 2001-06-19 | 3 | SU | 3000mSC, 400mH, 5000m |
| John McLoone | m | 2000-06-20 | 2000-06-20 | 1 | SU | 1500m |
| Cian McLoughlin | m | 1994-02-19 | 1995-12-16 | 2 | Guest | XC |
| Damien McLoughlin | m | 2000-02-26 | 2003-11-22 | 13 | DCU, Guest | 1500m, 3000mSC, Road, XC |
| Damien McLoughlin | m | 1979-05-04 | 1980-05-03 | 2 | UCC | 800m |
| H. McLoughlin | m | 1912-06-03 | 1913-05-24 | 2 | UCD | HJ |
| Peter McLoughlin | m | 1999-04-23 | 1999-04-24 | 2 | UCD | HJ, PV |
| Ray McLoughlin | m | 1959-05-13 | 1959-05-13 | 1 | UCD | SP |
| David McM. Carson | m | 1925-06-06 | 1925-06-06 | 1 | TCD | Mile |
| Brian McMahon | m | 2002-11-16 | 2006-04-22 | 16 | President's Select, UCC | 3000m, 3000mSC, 5000m, Road, XC |
| Bryan McMahon | m | 2001-11-07 | 2002-06-18 | 4 | IUAA, UCC | 3000mSC, Road, XC |
| Eamon McMahon | m | 1978-05-05 | 1979-05-05 | 2 | UCD | 3000mSC |
| G. McMahon | m | 1983-05-06 | 1983-05-07 | 1 | TCD | SP |
| Jay McMahon | m | 1995-06-20 | 1995-06-20 | 1 | H & Y | 400mH |
| Kevin McMahon | m | 2002-11-16 | 2003-03-09 | 2 | NUIM | Road, XC |
| Patrick McMahon | m | 2003-11-22 | 2003-11-22 | 1 | UU | Road |
| Sean McMahon | m | 2005-12-10 | 2010-02-13 | 45 | UU | 100m, 110mH, 16kgWfD, 4x100m, 4x200m, 60m, 60mH, CE, DT, HJ, LJ, PV, SP, TJ |
| T. McMahon | m | 1925-06-06 | 1925-06-06 | 1 | UCD | 220y |
| E. McMenamin | m | 1983-05-06 | 1983-05-07 | 1 | UCG | HT |
| Alan McMillan | m | 2003-06-10 | 2003-06-10 | 1 | SU | 400m |
| Lucas McMillan | m | 2000-11-12 | 2000-12-02 | 2 | UL | 3000m, Road |
| Neil McMillan | m | 1999-06-22 | 1999-06-22 | 1 | NI U23 | HT |
| J. McMillen | m | 1973-05-11 | 1973-05-12 | 1 | QUB | 400m |
| John McMillen | m | 1971-05-07 | 1972-05-06 | 3 | QUB | 100m, 200m, 400m |
| Jason McMinn | m | 2008-11-15 | 2010-03-13 | 4 | QUB | Road, XC |
| Iain McMullan | m | 1994-06-28 | 2001-06-19 | 10 | Guest, IUAA, NI U23 | DT, SP |
| Paul McMullan | m | 2001-04-20 | 2006-04-22 | 22 | IUAA, QUB | 200m, 400m, 400mH, 4x100m, 4x400m, 60m, Road |
| D. McMullen | m | 1983-05-06 | 1983-05-07 | 1 | QUB | LJ |
| Paul McMullin | m | 2000-04-14 | 2001-04-21 | 2 | RCSI | 35lbWfD, 400m |
| S. McMullin | m | 1987-05-08 | 1987-05-09 | 1 | TCD | 110mH |
| Andrew McMurray | m | 2003-03-09 | 2003-03-09 | 1 | QUB | XC |
| Gerard McNally | m | 2007-12-08 | 2007-12-09 | 3 | QUB | 200m, 60m, LJ |
| Dara McNamara | m | 1992-04-24 | 1992-04-25 | 1 | UCD | 3000mW |
| Darragh McNamara | m | 1992-03-07 | 1994-04-23 | 4 | Guest, UCD | 1500mW, 3000mW, XC |
| F. McNamara | m | 1978-05-05 | 1980-05-03 | 3 | TCD | 110mH, 400m, 400mH |
| Keir McNamara | m | 1995-03-04 | 1998-02-28 | 4 | UCD | XC |
| Kevin McNamara | m | 1995-03-04 | 2002-04-20 | 16 | TCD | 200m, 35lbWfD, 4x200m, 60mH, LJ, TJ, XC |
| M. McNamara | m | 1959-05-13 | 1959-05-13 | 1 | UCG | JT* |
| Paul McNamara | m | 1998-12-11 | 2000-04-15 | 9 | IUAA, NUIG | 1500m, 3000m, 5000m, Road, XC |
| Joseph F. McNeice | m | 1931-05-30 | 1931-05-30 | 4 | TCD | 100y, 220y |
| D.H. McNeill | m | 1936-05-30 | 1937-05-22 | 4 | TCD | HJ, Mile |
| Matthew McNicholl | m | 2006-12-02 | 2007-12-09 | 5 | UU | 4x100m, 4x200m, 60m |
| J.F. McNiece | m | 1929-06-01 | 1930-06-07 | 4 | TCD | 100y, 220y |
| Conor McNulty | m | 2007-03-31 | 2009-03-28 | 2 | Scotland, SU | XC |
| G. McNulty | m | 1986-05-02 | 1986-05-03 | 1 | TCD | 3000mSC |
| Nessan McQuaid | m | 2004-04-16 | 2004-04-17 | 2 | Guest | 1500m |
| Simon McQuaid | m | 1994-04-22 | 1994-04-23 | 1 | DIT | 400m |
| Padraig McSuibhne | m | 2005-11-19 | 2005-11-19 | 1 | TCD | Road |
| D. McSweeney | m | 1961-05-06 | 1961-05-06 | 1 | UCC | PV |
| Jonathan McSweeney | m | 1994-01-21 | 1998-04-25 | 13 | IUAA, UCC | 35lbWfD, DT, SP |
| Michael McSweeney | m | 1956-05-16 | 1958-07-28 | 5 | UCD | 120yH, HJ, LJ |
| Michael McSweeney | m | 2009-04-24 | 2009-04-25 | 2 | UCC | 4x100m |
| Eoghan McTigue | m | 2010-02-13 | 2010-04-24 | 2 | IT Carlow | 1500m, 3000m |
| G. McVeigh | m | 1972-05-05 | 1973-05-12 | 2 | NUU | HJ |
| R. McVeigh | m | 1994-06-28 | 1994-06-28 | 1 | NI U20 | 3000mSC |
| S. McVicker | m | 1913-05-24 | 1913-05-24 | 1 | QUB | 880y |
| Fergus Meade | m | 2002-11-16 | 2007-04-14 | 18 | IUAA, UCC | 10000m, 3000m, 5000m, Road, XC |
| Eoin Meagher | m | 2003-04-25 | 2003-11-22 | 3 | NUIM | 4x400m, Road |
| P. Meaklim | m | 1978-05-05 | 1978-05-06 | 1 | QUB | HJ |
| Sam Mealy | m | 2009-04-24 | 2010-04-24 | 5 | TCD | 10000m, 1500m, 3000m, 3000mW, Road |
| Michael Mearns | m | 1998-06-23 | 1999-06-22 | 2 | NI U23 | 3000mSC, Mile |
| Barry Meehan | m | 1998-12-11 | 1998-12-12 | 3 | NUIM | 1500m, 3000m, HJ |
| Karl Meehan | m | 2002-12-06 | 2003-04-26 | 6 | NUIG | 200m, 4x100m, 4x400m, LJ, TJ |
| Pauric Meehan | m | 2002-11-16 | 2002-11-16 | 1 | DCU | Road |
| Colin Megan | m | 1999-11-13 | 1999-11-13 | 1 | Guest | Road |
| Stephen Megrath | m | 2003-11-22 | 2003-11-22 | 1 | QUB | Road |
| F.S. Meiga | m | 1950-05-17 | 1950-05-17 | 1 | UCC | DT |
| Charles B. Mein | m | 1920-06-05 | 1920-06-05 | 2 | TCD | 880y, Mile |
| M. Mellotte | m | 1949-05-26 | 1949-05-26 | 1 | UCG | 120yH |
| Colin Melody | m | 2001-11-07 | 2001-11-07 | 1 | TCD | Road |
| John Menton | m | 1991-05-03 | 1996-04-20 | 20 | ILSI, IUAA, UCD | 35lbWfD, DT, HT, SP |
| Patrick Merle | m | 1997-02-01 | 1997-02-01 | 1 | NUIM | XC |
| Aidan Meyler | m | 1999-11-13 | 2002-03-09 | 7 | TCD | Road, XC |
| Rob Michael | m | 2004-11-20 | 2004-12-04 | 3 | QUB | 4x200m, 800m, Road |
| Rob Michael | m | 1997-12-12 | 2000-04-15 | 21 | UCD | 400m, 4x100m, 4x200m, 4x400m, LJ, XC |
| Dore Mick | m | 2009-04-24 | 2009-04-25 | 1 | UL | 1500m |
| H. Middleton | m | 1965-05-08 | 1965-05-08 | 1 | TCD | 120yH |
| Michael Milcahy | m | 1994-02-19 | 1994-02-19 | 1 | Cork RTC | XC |
| Simon Mileage | m | 2001-06-19 | 2001-06-19 | 2 | Guest, SU | 3000mSC, 800m |
| Barry Millar | m | 1998-06-23 | 1998-06-23 | 1 | SU | HJ |
| Robin Millar | m | 2006-04-21 | 2006-04-22 | 2 | UU | 100m, PV |
| Sammy Millar | m | 1999-04-23 | 1999-04-24 | 2 | UU | 800m |
| C. Miller | m | 1978-05-05 | 1979-05-05 | 3 | QUB | 100m, 200m |
| Jonathan Miller | m | 2000-12-01 | 2009-04-25 | 73 | Guest, IUAA, TCD | 100m, 110mH, 200m, 400m, 400mH, 4x100m, 4x200m, 4x400m, 60m, 60mH, HJ, LJ |
| Richard D.W. Miller | m | 1951-05-26 | 1951-05-26 | 1 | TCD | JT* |
| Mark Milligan | m | 1994-06-28 | 1996-02-10 | 5 | NI U20, UU | 400m, 400mH, 4x200m |
| T.J. Millin | m | 1926-06-05 | 1926-06-05 | 1 | TCD | HJ |
| K. Millington | m | 1970-05-09 | 1970-05-09 | 1 | TCD | 5000m |
| Colin Millner | m | 1992-03-07 | 1992-03-07 | 1 | Cork RTC | XC |
| Kingston Mills | m | 1975-05-02 | 1980-05-03 | 6 | TCD | 1500m, 3000mSC, 5000m, 800m |
| Simon Mitchel | m | 1999-04-23 | 1999-04-24 | 3 | TCD | 400mH, 4x400m |
| Andrew Mitchell | m | 1998-06-23 | 1998-06-23 | 1 | SU | 400m |
| W.F. Mitchell | m | 1932-05-28 | 1932-05-28 | 1 | TCD | 440y |
| W.S. Mitchell | m | 1931-05-30 | 1933-05-27 | 2 | TCD | 440y |
| Kensuke Miyazaki | m | 2002-11-16 | 2003-06-10 | 9 | DCU, IUAA | 400m, 400mH, 4x100m, 4x200m, 4x400m, Road |
| John P. Moffet | m | 1931-05-30 | 1931-05-30 | 2 | TCD | DT, SP |
| Kyle Moffett | m | 2007-02-24 | 2007-02-24 | 1 | UU | XC |
| Liam Moggin | m | 1975-05-02 | 1978-05-06 | 3 | TCE | 800m |
| Chris Mohan | m | 1997-12-12 | 1997-12-13 | 1 | QUB | 800m |
| Gavin Molloy | m | 2005-12-10 | 2006-04-22 | 7 | DCU | 200m, 400m, 4x100m, 4x200m, 60m, PV |
| M. Molloy | m | 1966-05-07 | 1966-05-07 | 1 | UCG | DT |
| Paul Molloy | m | 1999-04-23 | 1999-04-24 | 1 | IT Tralee | 800m |
| Adrian Moloney | m | 2005-11-19 | 2005-11-19 | 1 | CIT | Road |
| Connor Moloney | m | 1996-02-09 | 1996-02-10 | 2 | TCD | 200m, 4x200m |
| Niall Moloney | m | 1992-03-07 | 1992-03-07 | 1 | UCC | XC |
| Pat Moloney | m | 1999-04-23 | 1999-04-24 | 1 | UCC | 10000m |
| Pat Moloney | m | 1990-04-27 | 1991-05-04 | 2 | UCD | 1500m, 5000m |
| Patrick Moloney | m | 1999-04-23 | 1999-04-24 | 1 | UCC | 5000m |
| Rory Moloney | m | 2008-11-15 | 2010-04-24 | 15 | UL | 10000m, 1500m, 2000mW, 3000mW, 60mH, CE, HJ, LJ, Road, SP, XC |
| Tom Moloney | m | 1979-05-04 | 1980-05-03 | 3 | TCE | 1500m, 800m |
| Damien Monaghan | m | 1993-03-06 | 1993-03-06 | 1 | DCU | XC |
| Declan Monaghan | m | 2006-11-18 | 2008-11-15 | 4 | DCU | 3000mW, Road, XC |
| Derek Monaghan | m | 2000-04-14 | 2000-04-15 | 1 | UL | 3000mSC |
| K. Monaghan | m | 1967-05-06 | 1967-05-06 | 1 | UCD | JT* |
| Maghnus Monaghan | m | 2007-02-24 | 2007-02-24 | 1 | NUIM | XC |
| Sean Monaghan | m | 2009-03-07 | 2009-11-14 | 6 | QUB | 1500m, 4x100m, 4x400m, Road, XC |
| Javier Mondero | m | 1998-02-28 | 1998-02-28 | 1 | TCD | XC |
| David Mongon | m | 2007-04-13 | 2007-04-14 | 3 | DCU | 100m, 4x100m |
| Cary Monreal | m | 1999-06-22 | 1999-06-22 | 1 | NI U23 | PV |
| A. Monteith | m | 1992-04-24 | 1992-04-25 | 2 | QUB | 100m, 200m |
| Edward Montgomery | m | 2005-11-19 | 2009-04-25 | 6 | TCD | 10000m, 4x400m, Road, XC |
| Lee Montgomery | m | 2000-06-20 | 2000-06-20 | 1 | NI U23 | 400m |
| Ryan Montgomery | m | 2000-03-11 | 2000-03-11 | 1 | SU | XC |
| K. Mooahan | m | 1968-05-11 | 1968-05-11 | 1 | UCD | JT* |
| Lee Moody | m | 2002-06-18 | 2002-06-18 | 2 | NI U23 | HT, JT |
| Daniel Mooney | m | 2007-11-17 | 2009-04-25 | 10 | UU | 1500m, 3000m, 4x200m, 800m, Road |
| M. Mooney | m | 1958-07-28 | 1958-07-28 | 1 | UCC | LJ |
| Martin Mooney | m | 2009-11-14 | 2010-03-13 | 2 | NUIG | Road, XC |
| Wyatt Mooney | m | 1996-12-13 | 1996-12-14 | 2 | UCG | 1500m, 4x200m |
| Andrew Moore | m | 2004-02-06 | 2005-04-23 | 9 | Dundalk IT | 100m, 1500m, 200m, 400m, 800m |
| Colm Moore | m | 1991-05-03 | 1991-05-04 | 2 | UCD | 110mH, 400mH |
| Craig Moore | m | 2010-04-23 | 2010-04-24 | 1 | TCD | HJ |
| Daniel Moore | m | 2007-12-08 | 2010-04-24 | 6 | DCU | 100m, 200m, 4x100m, 4x200m, SP |
| David Moore | m | 2005-02-26 | 2005-02-26 | 1 | QUB | XC |
| Joe Moore | m | 2010-03-13 | 2010-03-13 | 1 | TCD | XC |
| Kevin Moore | m | 2010-03-13 | 2010-04-24 | 2 | UL | 5000m, XC |
| Lewis Moore | m | 1931-05-30 | 1931-05-30 | 1 | TCD | HJ |
| P.C. Moore | m | 1927-06-04 | 1930-06-07 | 10 | UCD | 100y, 220y, 440y, 880y |
| P.C. Moore | m | 1929-06-01 | 1929-06-01 | 1 | TCD | 440y |
| Patrick C. Moore | m | 1931-05-30 | 1931-05-30 | 5 | UCD | 100y, 220y, 440y |
| Philip Moore | m | 1996-12-13 | 1996-12-14 | 1 | TCD | LJ |
| Philip Moore | m | 2000-04-14 | 2000-04-15 | 1 | TCD | LJ |
| Richard Moore | m | 2003-06-10 | 2003-06-10 | 1 | NI U23 | JT |
| Sean Moore | m | 1958-07-28 | 1958-07-28 | 5 | UCC | 100y, 120yH, 220y, HJ, SP |
| T. Moore | m | 1925-06-06 | 1925-06-06 | 1 | QUB | Mile |
| T. Moore | m | 1947-05-21 | 1949-05-26 | 4 | UCC | 220y, 440y |
| William Moore | m | 1873-05-19 | 1873-05-19 | 1 | QUB | LJ |
| J.F. Moran | m | 1935-05-25 | 1935-05-25 | 1 | TCD | 100y |
| James Moran | m | 1995-03-04 | 1997-02-01 | 9 | UCG | 200m, 4x200m, 800m, LJ, TJ, XC |
| Michael Moran | m | 2009-02-14 | 2010-02-13 | 2 | NUIG | 2000mW |
| Stephen Moran | m | 2007-04-13 | 2007-04-14 | 2 | IT Sligo | 100m, LJ |
| Ansgar Morane | m | 1996-02-09 | 1996-02-10 | 1 | DCU | 800m |
| Eoin Morgan | m | 2010-02-13 | 2010-02-13 | 1 | UL | 60m |
| Jon Morgan | m | 2006-04-21 | 2006-04-22 | 1 | UU | TJ |
| K. Morgan | m | 1977-05-06 | 1977-05-07 | 1 | QUB | 1500m |
| Michael Morgan | m | 2003-06-10 | 2006-04-22 | 3 | NI U23, QUB | 400m, 4x400m |
| Kevin Moriarty | m | 2004-12-03 | 2009-04-25 | 15 | UL | 1500m, 800m, Road, XC |
| Kevin Morice | m | 2000-06-20 | 2000-06-20 | 2 | SU | 200m, 400mH |
| James Morlan | m | 1998-02-28 | 1998-02-28 | 1 | NUIG | XC |
| Ken Morley | m | 1996-12-13 | 1998-03-14 | 4 | NUIG, Queen's Select, UCG | 3000m, XC |
| M. Moroney | m | 1956-05-16 | 1959-05-13 | 3 | UCC | LJ |
| M.A. Moroney | m | 1929-06-01 | 1933-05-27 | 6 | UCD | HJ, LJ |
| Martin A. Moroney | m | 1931-05-30 | 1931-05-30 | 2 | UCD | HJ, LJ |
| H. Morphy | m | 1913-05-24 | 1913-05-24 | 1 | TCD | SP |
| Richie Morrin | m | 2000-11-12 | 2007-04-14 | 10 | TCD | 3000mW, 800m, Road, XC |
| Liam Morris | m | 2001-11-07 | 2002-04-20 | 4 | UL | 1500m, 5000m, Road, XC |
| Michael Morris | m | 2001-04-07 | 2001-04-21 | 2 | Guest | 5000m, XC |
| Paul Morris | m | 2000-04-14 | 2000-04-15 | 1 | TCD | 100m |
| Ryan Morris | m | 1996-06-25 | 1996-06-25 | 1 | SU | 1500m |
| Seamus Morris | m | 1992-03-07 | 1994-02-19 | 2 | UCD | XC |
| William Morris | m | 2002-11-16 | 2003-04-26 | 4 | President's Select, UL | 800m, Road, XC |
| Iain Morrison | m | 1993-02-12 | 1999-06-22 | 23 | IUAA, TCD | 1500m, 3000mSC, 5000m, 800m, Road, XC |
| J. Morrison | m | 1961-05-06 | 1961-05-06 | 1 | UCC | DT |
| M. Morrison | m | 1959-05-13 | 1959-05-13 | 2 | UCC | DT, LJ |
| Johnny Morrissey | m | 2006-03-04 | 2007-11-17 | 3 | DCU | Road, XC |
| Steven Morrow | m | 2003-06-10 | 2005-06-07 | 3 | NI U23 | 800m |
| G. Morton | m | 1970-05-09 | 1970-05-09 | 1 | QUB | 400mH |
| John Morton | m | 2001-04-20 | 2001-04-21 | 2 | Portobello | DT, SP |
| Brian Moss | m | 1996-12-13 | 1997-02-01 | 2 | TCD | 3000m, XC |
| P. Moss | m | 1968-05-11 | 1968-05-11 | 1 | QUB | 440y |
| Sandy Moss | m | 1998-03-14 | 1998-03-14 | 1 | SU | XC |
| Nick Mouawad | m | 2002-04-19 | 2002-04-20 | 1 | RCSI | SP |
| B. Mountjoy | m | 1992-04-24 | 1992-04-25 | 1 | UCC | 200m |
| I. Mowatt | m | 1968-05-11 | 1970-05-09 | 4 | TCD | DT, SP |
| M.J. Moylan | m | 1873-05-19 | 1873-05-19 | 3 | UCG | 100y, 120yH, 440y |
| Cahil Moynihan | m | 1999-11-13 | 1999-11-13 | 1 | UL | Road |
| Daire Moynihan | m | 2000-04-14 | 2000-04-15 | 1 | TCD | HJ |
| Darren Moynihan | m | 1999-12-03 | 1999-12-04 | 2 | TCD | HJ, TJ |
| F.B. Moynihan | m | 1927-06-04 | 1929-06-01 | 3 | TCD | LJ |
| Andrew C. Muir | m | 1996-06-25 | 1999-06-22 | 4 | SU | 3000mSC, 5000m, DT |
| Conor Mulcahy | m | 1982-04-30 | 1986-05-03 | 9 | TCD | DT, HT |
| D. Mulcahy | m | 1921-06-04 | 1921-06-04 | 1 | UCD | HJ |
| Michael Mulcahy | m | 1994-01-21 | 1995-12-16 | 3 | Cork RTC | 1500m, XC |
| John Mulcaire | m | 1996-02-09 | 1996-02-10 | 1 | UCG | SP |
| Michael Muldoon | m | 2004-11-20 | 2008-04-19 | 13 | Guest, UCD | 2000mW, 3000m, 3000mW, 800m, Road, XC |
| Micheal Muldoon | m | 2007-04-13 | 2007-04-14 | 1 | UCD | 3000mW |
| Patrick Muldoon | m | 1999-11-13 | 2004-02-28 | 18 | President's Select, UL | 10000m, 3000m, 3000mW, 5000m, Road, XC |
| Eoin Muldowney | m | 2009-02-14 | 2010-04-24 | 14 | DCU | 100m, 200m, 4x100m, 4x200m, 60m |
| Eoin Mulhall | m | 2009-02-14 | 2010-04-24 | 12 | UCD | 400m, 4x400m |
| Kieran Mulhall | m | 2003-11-22 | 2003-11-22 | 1 | NUIM | Road |
| Dan Mulhare | m | 2005-02-26 | 2008-04-19 | 17 | IUAA, SU, WIT | 1500m, 4x400m, 5000m, 800m, M, Road, XC |
| Michael Mulhare | m | 2009-03-07 | 2009-11-14 | 4 | IUAA, UL | 1500m, Road, XC |
| Denis Mulkeen | m | 1993-02-12 | 1993-02-12 | 1 | UCG | 400m |
| Matthew Mulkeen | m | 2000-04-14 | 2002-04-20 | 4 | RCSI | 1500m, 4x400m, 800m |
| Eric Mulkerrins | m | 1999-03-06 | 1999-11-13 | 2 | NUIG | Road, XC |
| J.G. Mullane | m | 1913-05-24 | 1913-05-24 | 2 | UCC | 120yH |
| P.J. Mullaney | m | 1933-05-27 | 1935-05-25 | 5 | TCD | DT, SP |
| Darragh Mullen | m | 2008-11-15 | 2008-11-15 | 1 | NUIM | Road |
| Eoin Mullen | m | 2009-03-07 | 2010-04-24 | 3 | QUB | 10000m, Road, XC |
| John Mullen | m | 1989-05-05 | 1992-04-25 | 4 | TCD | HJ |
| Robert Mullen | m | 1997-12-12 | 1997-12-13 | 2 | UU | 800m |
| R. Mulles-Hermann | m | 1999-03-06 | 1999-03-06 | 1 | DCU | XC |
| Mick Mullet | m | 1961-05-06 | 1963-05-11 | 2 | UCD | HJ |
| J. Mulligan | m | 1971-05-07 | 1971-05-08 | 1 | UCD | PV |
| James Mulligan | m | 2009-04-24 | 2009-04-25 | 1 | UL | PV |
| Michael Mulligan | m | 2000-11-12 | 2000-11-12 | 1 | DIT | Road |
| Brendan Mullin | m | 1983-05-06 | 1983-05-07 | 1 | TCD | 110mH |
| David Mullin | m | 2002-12-06 | 2002-12-07 | 1 | NUIG | LJ |
| S. Mullin | m | 1986-05-02 | 1986-05-03 | 1 | TCD | 110mH |
| T.J. Mullin | m | 1927-06-04 | 1927-06-04 | 1 | TCD | 120yH |
| Will Mullin | m | 2000-12-01 | 2000-12-02 | 2 | WIT | 1500m, 3000m |
| Aidan Mullins | m | 2009-02-14 | 2010-02-13 | 7 | UL | 800m, Road, XC |
| D. Mullins | m | 1955-05-19 | 1955-05-19 | 1 | UCC | 120yH |
| Geoffrey Mullins | m | 2002-04-19 | 2002-04-20 | 2 | Limerick IT | DT, SP |
| J. Mullins | m | 1987-05-08 | 1987-05-09 | 1 | UCC | 3000mW |
| Michael Mullins | m | 1984-05-04 | 1988-04-30 | 4 | TCD | PV |
| Paddy Mullins | m | 2008-11-15 | 2008-11-15 | 1 | NUIM | Road |
| Frank Mulreany | m | 1961-05-06 | 1965-05-08 | 7 | UCD | DT, JT*, SP |
| J. Mulvihill | m | 1914-06-06 | 1914-06-06 | 5 | UCC | 100y, 120yH, DT |
| Sean Mulvihill | m | 1992-03-07 | 1994-02-19 | 7 | UCC | 1500m, 800m, XC |
| D. Murnaghan | m | 1959-05-13 | 1959-05-13 | 2 | UCD | 100y, 120yH |
| Christopher Murnane | m | 2010-02-13 | 2010-02-13 | 5 | UCC | 200m, 4x200m |
| Iain Murnane | m | 1998-04-24 | 1998-12-12 | 3 | TCD | 400m, 4x200m, 4x400m |
| Ian Murnane | m | 1999-04-23 | 1999-04-24 | 3 | TCD | 400m, 4x400m |
| Andrew Murphy | m | 2006-11-18 | 2007-04-14 | 6 | President's Select, WIT | 1500m, 3000mSC, Road, XC |
| Andrew Murphy | m | 2004-02-28 | 2004-02-28 | 1 | UCD | XC |
| B. Murphy | m | 1992-04-24 | 1992-04-25 | 1 | UCC | HJ |
| B. Murphy | m | 1967-05-06 | 1967-05-06 | 1 | UCC | 440y |
| Brendan Murphy | m | 2010-02-13 | 2010-02-13 | 1 | UU | 400m |
| Brendan Murphy | m | 2004-06-08 | 2005-06-07 | 2 | NI U23 | 200m, 400m |
| Brian Murphy | m | 2005-11-19 | 2007-11-17 | 2 | UL | Road |
| Brian Murphy | m | 2002-06-18 | 2004-11-20 | 7 | IUAA, NUIG | 400m, 5000m, Road, XC |
| Brian Murphy | m | 2003-04-25 | 2006-04-22 | 25 | UCC | 200m, 400m, 4x100m, 4x200m, 4x400m |
| Bryan Murphy | m | 2002-04-19 | 2002-04-20 | 3 | UCC | 400m, 4x400m |
| Cian Murphy | m | 2000-02-26 | 2004-04-17 | 16 | UCC | 3000m, 3000mW, 5000m, 800m, Road, XC |
| Ciaran Murphy | m | 2002-11-16 | 2002-11-16 | 1 | UL | Road |
| Colin Murphy | m | 1992-04-24 | 1992-04-25 | 1 | TCD | 110mH |
| Conor Murphy | m | 2007-11-17 | 2008-11-15 | 2 | DCU | Road |
| D. Murphy | m | 1960-05-14 | 1960-05-14 | 1 | UCG | 100y |
| Darragh Murphy | m | 1993-06-22 | 1993-06-22 | 1 | NI U20 | HJ |
| David Murphy | m | 1995-06-20 | 1999-06-22 | 11 | Guest, NI U23, UU | 110mH, 400mH, 4x400m |
| Donal Murphy | m | 2004-02-06 | 2004-04-17 | 7 | UCD | 100m, 200m, 4x200m |
| E.J. Murphy | m | 1913-05-24 | 1914-06-06 | 2 | UCC | Mile |
| Eoin Murphy | m | 1999-11-13 | 1999-11-13 | 1 | UCD | Road |
| Eoin Murphy | m | 2009-02-14 | 2009-04-25 | 6 | CIT | 16kgWfD, DT, HT, JT, SP |
| F.J Murphy | m | 1913-05-24 | 1913-05-24 | 1 | TCD | LJ |
| G. Murphy | m | 1981-05-01 | 1981-05-02 | 1 | UCC | 10000m |
| G. Murphy | m | 1947-05-21 | 1947-05-21 | 1 | UCC | LJ |
| G. Murphy | m | 1975-05-02 | 1975-05-03 | 1 | UCD | 400mH |
| G. Murphy | m | 1965-05-08 | 1965-05-08 | 1 | UCG | PV |
| H. Murphy | m | 1968-05-11 | 1968-05-11 | 1 | UCD | LJ |
| Ivan Murphy | m | 2008-11-15 | 2008-11-15 | 1 | NUIM | Road |
| J. Murphy | m | 1977-05-06 | 1979-05-05 | 3 | TCD | JT* |
| J. Murphy | m | 1979-05-04 | 1980-05-03 | 2 | UCC | 10000m |
| J.K. Murphy | m | 1951-05-26 | 1951-05-26 | 1 | TCD | 880y |
| James Murphy | m | 1999-11-13 | 2004-02-07 | 13 | IUAA, President's Select, UCC | 10000m, 1500m, 5000m, Road, XC |
| K. Murphy | m | 1966-05-07 | 1966-05-07 | 1 | UCG | PV |
| Kieran Murphy | m | 1997-12-12 | 1999-04-24 | 10 | UL | 100m, 200m, 400mH, 4x100m, 4x200m |
| Killian Murphy | m | 2004-11-20 | 2004-11-20 | 1 | TCD | Road |
| Liam Murphy | m | 1998-02-28 | 1998-02-28 | 1 | UCC | XC |
| N. Murphy | m | 1981-05-01 | 1982-05-01 | 2 | TCD | 800m |
| N. Murphy | m | 1949-05-26 | 1950-05-17 | 3 | UCC | 100y, 220y |
| N. Murphy | m | 1975-05-02 | 1976-05-01 | 2 | UCD | 800m |
| Noel Murphy | m | 2005-11-19 | 2005-11-19 | 1 | UCD | Road |
| Owen Murphy | m | 2010-04-23 | 2010-04-24 | 5 | CIT | 16kgWfD, DT, HT, JT, SP |
| P. Murphy | m | 1993-04-23 | 1993-04-24 | 1 | UCC | 3000mW |
| P. Murphy | m | 1947-05-21 | 1947-05-21 | 1 | UCG | 120yH |
| R. Murphy | m | 1968-05-11 | 1968-05-11 | 1 | QUB | JT* |
| Ruaidhri Murphy | m | 2007-04-13 | 2007-04-14 | 1 | DCU | SP |
| S. Murphy | m | 1949-05-26 | 1950-05-17 | 2 | UCG | 120yH |
| S. Murphy | m | 1961-05-06 | 1962-05-17 | 2 | UCG | PV |
| Sean Murphy | m | 1953-07-15 | 1957-05-18 | 2 | UCD | 120yH |
| T. Murphy | m | 1952-05-22 | 1952-05-22 | 1 | UCC | JT* |
| W.H. Murphy | m | 1912-06-03 | 1913-05-24 | 3 | TCD | 100y, 440y |
| G. Murphy O'Connor | m | 1912-06-03 | 1912-06-03 | 3 | UCC | 100y, 220y |
| P.C. Murphy O'Connor | m | 1913-05-24 | 1913-05-24 | 1 | UCC | 220y |
| Anthony Murray | m | 1993-03-06 | 1993-03-06 | 1 | UCC | XC |
| B. Murray | m | 1960-05-14 | 1962-05-17 | 3 | UCC | 220y, 440y, 880y |
| D. Murray | m | 1962-05-17 | 1962-05-17 | 1 | UCC | 440y |
| Derek Murray | m | 2010-02-13 | 2010-04-24 | 3 | NUIG | 1500m, XC |
| Eamon Murray | m | 2001-06-19 | 2001-06-19 | 1 | IUAA | TJ |
| Eamonn Murray | m | 1999-12-03 | 2002-04-20 | 6 | UCC | LJ, TJ |
| G. Murray | m | 1948-05-22 | 1950-05-17 | 7 | UCC | 120yH, HJ, LJ |
| Gary Murray | m | 1998-04-24 | 2002-04-20 | 6 | IUAA, UU | 1500m, XC |
| George Murray | m | 1995-12-16 | 1997-12-13 | 4 | CIT, Cork RTC | 3000m, XC |
| John Murray | m | 1994-02-19 | 1994-02-19 | 1 | Guest | XC |
| John Murray | m | 2000-03-11 | 2000-03-11 | 1 | SU | XC |
| Michael Murray | m | 2002-04-19 | 2002-04-20 | 1 | RCSI | 10000m |
| Michael Murray | m | 2002-11-16 | 2002-11-16 | 1 | Guest | Road |
| Micheal Murray | m | 2001-11-07 | 2001-12-08 | 6 | QUB | 2000mW, 200m, 4x200m, 60m, LJ, Road |
| Ronnie Murray | m | 2009-03-07 | 2009-04-25 | 5 | QUB | 400m, 4x100m, 4x400m, XC |
| Shane Murray | m | 2009-04-24 | 2010-04-24 | 7 | CIT | 400m, 4x100m, 4x400m, 800m |
| Simon Murray | m | 2001-04-20 | 2008-11-15 | 34 | IUAA, NI U23, QUB | 10000m, 2000mSC, 3000m, 3000mSC, 400mH, 4x200m, 4x400m, LJ, Road, XC |
| Ian Murray-Tait | m | 1996-06-25 | 1998-06-23 | 3 | NI U23 | HJ |
| Derek Murtagh | m | 2002-11-16 | 2004-04-17 | 11 | IT Tallaght | 100m, 110mH, 2000mW, 3000m, 4x400m, CE, HJ, LJ, Road, SP |
| H. Murtagh | m | 1964-05-09 | 1964-05-09 | 1 | UCD | 120yH |
| R. Murtagh | m | 1979-05-04 | 1981-05-02 | 3 | UCD | 10000m, 5000m |
| Takawira Mutokonya | m | 2005-12-10 | 2005-12-11 | 3 | IT Carlow | 200m, 60m, LJ |
| Yvonne MacAuley | f | 2009-11-14 | 2010-04-24 | 6 | TCD | 3000m, 800m, Road, XC |
| Noreen Macay | f | 2007-02-24 | 2009-11-14 | 2 | CIT | Road, XC |
| Cynne MacCartney | f | 1993-04-23 | 1993-04-24 | 1 | UU | SP |
| Leanne Macey-Lillie | f | 2001-06-19 | 2001-06-19 | 1 | NI U23 | 3000m |
| Noeen Mackey | f | 2010-04-23 | 2010-04-24 | 7 | CIT | 1500m, 4x100m, 4x400m, 8kgWfD, DT, JT, LJ |
| Sinead Mackey | f | 2004-04-16 | 2008-04-19 | 15 | UCC | 100m, 200m, 4x100m, 4x200m, 4x400m, 60m, LJ |
| Clare Mackintosh | f | 1993-06-22 | 1994-06-28 | 4 | SU | 100mH, TJ |
| Heather MacLennan | f | 1995-06-20 | 1995-06-20 | 2 | H & Y | LJ, TJ |
| Claire Madigan | f | 2009-02-14 | 2009-04-25 | 3 | AIT | 1500m, XC |
| Deirdre Madigan | f | 1998-04-24 | 1998-12-12 | 3 | UL | 1500mW, SP |
| Kathleen Madigan | f | 2009-03-07 | 2009-04-25 | 3 | CIT | 1500mW, 3000m, XC |
| Laura Magarahan | f | 2003-03-09 | 2003-03-09 | 1 | IT Carlow | XC |
| Eilis Magee | f | 1996-02-09 | 1997-12-13 | 11 | Guest, WIT | 4x200m, 60m, HJ, LJ |
| Zoe Magnier | f | 1999-06-22 | 1999-06-22 | 1 | NI U23 | HJ |
| Deborah Maguire | f | 1994-01-21 | 1994-01-21 | 1 | SPM | 60m |
| Eimear Maher | f | 2001-11-07 | 2004-11-20 | 5 | UCC | Road, XC |
| Louise Maher | f | 1993-02-12 | 1993-02-12 | 1 | UCD | 400m |
| O. Maher | f | 1975-05-02 | 1975-05-03 | 1 | UCD | SP |
| Ruth Maher | f | 1994-01-21 | 1994-01-21 | 3 | UCD | 60m, SP, TJ |
| Fiona Mahon | f | 2001-04-07 | 2004-02-28 | 14 | DCU, IUAA | 3000m, 4x100m, 4x400m, 5000m, Road, XC |
| L. Mahoney | f | 1995-04-21 | 1995-04-22 | 1 | Unknown | DT |
| Maura Mahoney | f | 2008-11-15 | 2010-04-24 | 7 | TCD | 1500m, 3000m, 800m, Road, XC |
| Francesca Maino | f | 2010-02-13 | 2010-04-24 | 12 | UL | 100m, 200m, 400m, 4x100m, 4x200m, 4x400m, 60m, JT |
| Dorene Mallon | f | 2002-11-16 | 2002-11-16 | 1 | TCD | Road |
| Elaine Malone | f | 2001-12-07 | 2001-12-08 | 1 | UL | SP |
| Orla Malone | f | 2003-11-22 | 2004-11-20 | 2 | Guest, UCD | Road |
| Elanor Maloney | f | 1993-02-12 | 1993-02-12 | 2 | UL | 400m, SP |
| Orla Maloney | f | 1999-12-03 | 2001-04-21 | 4 | UCD | 4x200m, TJ |
| S. Maloney | f | 1989-05-05 | 1989-05-06 | 1 | NIHED | JT* |
| Valerie Mangan | f | 1995-04-21 | 1996-02-10 | 2 | UL | SP |
| C. Mann | f | 1987-05-08 | 1987-05-09 | 2 | UCD | 400m, 400mH |
| Greta Manners | f | 1991-05-03 | 1993-04-24 | 4 | TCE, UL | 1500mW, XC |
| Rachel Manning | f | 2003-06-10 | 2003-06-10 | 1 | Guest | 100m |
| Avril Mansfield | f | 1998-04-24 | 2001-04-21 | 4 | UL | HT, SP |
| Francis Mansfield | f | 2000-04-14 | 2001-04-21 | 4 | IT Tallaght | DT, HT |
| Victoria Manuel Delgado | f | 2009-11-14 | 2010-04-24 | 5 | UCC | 1500mW, 3000m, 5000m, Road, XC |
| Kramarek Mara | f | 2005-02-26 | 2005-02-26 | 1 | CIT | XC |
| Gail Marshall | f | 1995-06-20 | 1995-06-20 | 2 | SU | 800m, TJ |
| Jacqueline Marshall | f | 1998-06-23 | 1999-06-22 | 2 | SU | PV |
| Jacqui Marshall | f | 2000-06-20 | 2000-06-20 | 3 | SU | 100m, 200m, PV |
| Maura Marshall | f | 1999-11-13 | 2002-03-09 | 10 | UCC | 1500m, 1500mW, 3000m, Road, XC |
| Moira Marshell | f | 2001-04-20 | 2001-04-21 | 1 | UCC | 5000m |
| A. Martin | f | 1972-05-05 | 1972-05-06 | 1 | QUB | 400m |
| C. Martin | f | 1979-05-04 | 1980-05-03 | 6 | QUB | 100m, 100mH, 200m |
| Ciara Martin | f | 1999-03-06 | 2000-02-26 | 2 | NUIG | XC |
| Claire Martin | f | 2009-03-28 | 2009-03-28 | 1 | England | XC |
| Eimear Martin | f | 1999-12-03 | 2000-04-15 | 2 | UL | 1500m |
| Eimer Martin | f | 1995-12-16 | 2000-02-26 | 9 | UL | 1500m, 3000m, Road, XC |
| Jennifer Martin | f | 2004-06-08 | 2004-06-08 | 1 | NI U23 | 3000m |
| Jenny Martin | f | 1995-06-20 | 1995-06-20 | 1 | H & Y | 1500m |
| M. Martin | f | 1983-05-06 | 1983-05-07 | 1 | TCE | 700mW |
| Lorraine Mason | f | 1994-06-28 | 1994-06-28 | 1 | NI U20 | DT |
| Eva Massey | f | 1996-06-25 | 2003-06-10 | 12 | IUAA, NI U23, UU | DT, SP |
| Eva Massey | f | 2010-04-23 | 2010-04-24 | 1 | UU | SP |
| Monica May | f | 2000-04-14 | 2000-04-15 | 2 | DIT | 100m, 200m |
| Helen Maybin | f | 2004-11-20 | 2005-04-23 | 9 | QUB | 100m, 200m, 4x100m, 60m, LJ, Road |
| Ciara Mc Callion | f | 2006-12-02 | 2010-02-13 | 15 | TCD | 200m, 400m, 4x200m, 4x400m, Road |
| Teresa Mc Gloin | f | 2007-12-08 | 2008-04-19 | 3 | IT Sligo | 3000m, 5000m, XC |
| Eimer McAhinney | f | 1999-12-03 | 1999-12-04 | 3 | UCD | 4x200m, 800m, SP |
| Claire McAleese | f | 2000-06-20 | 2002-06-18 | 6 | IUAA, NI U23, UU | DT, SP |
| Clare McAleese | f | 2007-12-08 | 2008-04-19 | 2 | UU | SP |
| Barbara McAllister | f | 2007-12-08 | 2010-04-24 | 12 | CIT | 8kgWfD, DT, HT, JT, SP, XC |
| Joanne McAllister | f | 2002-06-18 | 2002-06-18 | 1 | NI U23 | HJ |
| Gemma McAnirn | f | 2008-04-18 | 2010-02-13 | 10 | QUB | 4x100m, 60mH, 8kgWfD, CE, DT, HJ, LJ, SP |
| Caroline McArdle | f | 2009-11-14 | 2009-11-14 | 1 | QUB | Road |
| Louise McArdle | f | 2009-04-24 | 2010-04-24 | 7 | DCU | 100m, 400m, 4x400m |
| Caitlin McAuley | f | 2007-11-17 | 2007-11-17 | 1 | QUB | Road |
| Laura McAuley | f | 2002-06-18 | 2002-06-18 | 1 | NI U23 | TJ |
| Ailish McAulliffe | f | 1997-12-12 | 1997-12-13 | 1 | UCC | SP |
| H. McBride | f | 1983-05-06 | 1984-05-05 | 2 | QUB | LJ |
| Elaine McCaffery | f | 2002-06-18 | 2007-04-14 | 27 | Guest, UU | 100m, 200m, 400m, 4x100m, 4x200m, 4x400m, 60m, 8kgWfD, Road |
| Elaine McCaffrey | f | 2003-06-10 | 2003-06-10 | 1 | NI U23 | 400m |
| Jane McCandless | f | 1997-06-24 | 1999-06-22 | 2 | NI U23 | JT, JT* |
| Gerrie McCann | f | 1993-03-06 | 1993-03-06 | 1 | QUB | XC |
| Laura McCann | f | 2001-12-07 | 2006-04-22 | 30 | Guest, QUB | 1500m, 1500mW, 200m, 4x100m, 4x400m, 800m, LJ, Road, TJ, XC |
| S. McCann | f | 1993-06-22 | 1993-06-22 | 1 | Guest | 400mH |
| Jill McCarter | f | 1994-06-28 | 1995-06-20 | 3 | NI U20, NI U23 | LJ, TJ |
| Aisling McCarthy | f | 1994-04-22 | 1994-04-23 | 1 | UCC | 400mH |
| Aoife McCarthy | f | 2002-03-09 | 2002-03-09 | 1 | UU | XC |
| Catherine McCarthy | f | 1999-11-13 | 2000-04-15 | 9 | UCC | 100m, 200m, 4x200m, 60m, Road |
| Denise McCarthy | f | 2002-04-19 | 2002-04-20 | 3 | CIT | 100mH, 400mH |
| Eilish McCarthy | f | 1998-12-11 | 1998-12-12 | 1 | UCC | 60m |
| Elaine McCarthy | f | 2005-12-10 | 2005-12-11 | 1 | UU | 4x200m |
| Geraldine McCarthy | f | 2000-04-14 | 2000-11-12 | 3 | UCC | 100m, LJ, Road |
| Jennifer McCarthy | f | 1999-12-03 | 2000-06-20 | 8 | CIT, IUAA | 4x200m, 60mH, HJ, LJ, TJ |
| L. McCarthy | f | 1993-04-23 | 1993-04-24 | 1 | UU | DT |
| Margaret McCarthy | f | 2004-02-06 | 2005-04-23 | 15 | UCC | 1500m, 1500mW, 3000m, 800m, HJ, Road, TJ, XC |
| Martina McCarthy | f | 2003-11-22 | 2008-04-19 | 25 | DCU | 200m, 400m, 4x100m, 4x200m, 4x400m, 800m, 8kgWfD, HT, Road, SP |
| Mary McCarthy | f | 1997-12-12 | 1999-12-04 | 5 | IT Tralee | 1500m, 3000m |
| Patricia McCarthy | f | 2004-02-06 | 2004-04-17 | 10 | UCD | 100m, 60m, HJ, HT, JT, LJ, SP |
| Paula McCarthy | f | 2007-04-13 | 2009-04-25 | 10 | UL | 100mH, CE, HJ, JT, LJ, SP |
| Ramona McCarthy | f | 1999-03-06 | 1999-03-06 | 1 | NUIG | XC |
| Sally McCarthy | f | 2009-11-14 | 2010-02-13 | 4 | UCC | 1500m, 4x200m, Road |
| Una McCarthy | f | 1998-12-11 | 2003-04-26 | 33 | IUAA, TCD | 100mH, 1500m, 400m, 400mH, 4x100m, 4x200m, 4x400m, 60mH, 800m, PV, Road, TJ, XC |
| L. McCartney | f | 1992-04-24 | 1992-04-25 | 2 | UU | DT, SP |
| Eilish McCathy | f | 1998-12-11 | 1998-12-12 | 1 | UCC | 200m |
| Nicola McCaughey | f | 2004-11-20 | 2008-11-15 | 14 | QUB | 1500m, 3000m, 4x400m, PV, Road, XC |
| Maire McCauley | f | 2008-11-15 | 2009-04-25 | 4 | DCU | 3000m, Road, XC |
| Louise McClean | f | 1992-03-07 | 1992-03-07 | 1 | QUB | XC |
| Avril McClung | f | 1989-05-05 | 1989-05-06 | 1 | UU | 3000m |
| Beth McCluskey | f | 1992-03-07 | 1992-03-07 | 1 | Guest | XC |
| Fiona McCole | f | 1999-12-03 | 2000-04-15 | 2 | UL | LJ |
| Catriona McCorkell | f | 1998-06-23 | 2005-04-23 | 11 | IUAA, NI U23, QUB | 1500m, 3000m, 4x100m, 4x400m, 5000m, XC |
| Catronia McCorkell | f | 2009-03-28 | 2009-03-28 | 1 | Northern Ireland | XC |
| Caroline McCormack | f | 1994-04-22 | 1994-04-23 | 1 | Sligo RTC | 800m |
| Deirdre McCormack | f | 1992-03-07 | 1992-04-25 | 2 | UCG | 10000m, XC |
| Maeve McCormack | f | 1974-05-03 | 1976-05-01 | 4 | UCD | 200m, 400m, 800m |
| Caroline McCormick | f | 1995-12-16 | 1995-12-16 | 1 | UU | XC |
| Suzanne McCormick | f | 2002-03-09 | 2005-02-26 | 7 | IUAA, QUB | 3000m, 5000m, Road, XC |
| Julie McCorrie | f | 2001-06-19 | 2001-06-19 | 1 | Guest | SP |
| Claire McCorry | f | 2006-11-18 | 2006-11-18 | 1 | QUB | Road |
| Julie McCorry | f | 1995-06-20 | 1999-06-22 | 11 | NI U23 | DT, JT*, LJ, SP |
| Donna McCoy | f | 2003-11-22 | 2003-11-22 | 1 | UU | Road |
| Donna McCullough | f | 1995-06-20 | 1996-06-25 | 2 | NI U23 | 1500m |
| Olivia McCullough | f | 2000-06-20 | 2000-06-20 | 1 | NI U23 | 3000m |
| Linda McCurry | f | 1974-05-03 | 1976-05-01 | 6 | QUB | 100m, 200m |
| Niamh McDermot | f | 2004-11-20 | 2005-11-19 | 2 | DCU | Road |
| Ailish McDermott | f | 2009-03-07 | 2009-03-07 | 1 | RCSI | XC |
| Deirdre McDermott | f | 1998-02-28 | 2003-04-26 | 5 | DCU, President's Select | 3000m, Road, XC |
| Deirdre McDermott | f | 2005-11-19 | 2006-03-04 | 2 | UL | Road, XC |
| Olivia McDonald | f | 2009-04-24 | 2009-04-25 | 1 | Dundalk IT | JT |
| Therese McDonald | f | 1990-04-27 | 1992-04-25 | 2 | TCD | HJ |
| Orla McDonnell | f | 2005-11-19 | 2005-11-19 | 1 | UCD | Road |
| Debbie McDowell | f | 1983-05-06 | 1987-05-09 | 5 | QUB | 100mH, DT, HJ |
| M. McElgunn | f | 1978-05-05 | 1978-05-06 | 1 | UCG | 400m |
| Catherine McElheny | f | 2008-03-08 | 2008-03-08 | 1 | NUIG | XC |
| M. McEmery | f | 1975-05-02 | 1975-05-03 | 1 | TCE | DT |
| Catherina McEnery | f | 1999-04-23 | 1999-04-24 | 1 | IT Tralee | 100m |
| M. McEnery | f | 1976-04-30 | 1976-05-01 | 1 | TCE | DT |
| E. McEvoy | f | 1973-05-11 | 1973-05-12 | 1 | UCD | 400m |
| M. McEvoy | f | 1972-05-05 | 1972-05-06 | 1 | UCG | 1500m |
| Fiona McGann | f | 1995-12-16 | 1998-03-14 | 7 | DIT, Guest, IUAA | 3000m, 5000m, XC |
| Hilary McGee | f | 1996-02-09 | 2001-04-21 | 14 | IUAA, NUIM, SPM | 800m, Road, SP, XC |
| Hilary McGee | f | 2009-11-14 | 2010-04-24 | 2 | UCD | Road, SP |
| Ciara McGilloway | f | 2003-04-25 | 2004-04-17 | 4 | UU | DT, JT, SP |
| Deirdre McGing | f | 2010-04-23 | 2010-04-24 | 2 | TCD | HT, SP |
| Orna McGinley | f | 2010-02-13 | 2010-02-13 | 3 | DCU | 400m, TJ |
| Paula McGinn | f | 2004-02-06 | 2004-12-04 | 3 | UU | 4x200m, 60m, LJ |
| Claire McGinnity | f | 2004-12-03 | 2004-12-04 | 3 | Dundalk IT | 200m, 4x200m, 60m |
| Kelly McGivern | f | 2002-06-18 | 2002-06-18 | 1 | NI U23 | 3000m |
| Jennifer McGlinchey | f | 2003-11-22 | 2003-11-22 | 1 | UU | Road |
| Claire McGlynn | f | 2005-12-10 | 2010-04-24 | 38 | TCD | 200m, 400m, 4x100m, 4x200m, 4x400m, 60m, 8kgWfD, PV, Road, SP |
| Una McGoldrick | f | 1986-05-02 | 1987-05-09 | 3 | QUB | 100m, 200m |
| V. McGoldrick | f | 1987-05-08 | 1989-05-06 | 3 | QUB | 100m, 4x100m, LJ |
| F. McGonal | f | 1991-05-03 | 1991-05-04 | 1 | UCD | HJ |
| F. McGovern | f | 1988-04-29 | 1988-04-30 | 1 | TCD | HJ |
| Fiona McGovern | f | 1985-05-03 | 1987-05-09 | 3 | TCE | DT |
| M. McGovern | f | 1981-05-01 | 1983-05-07 | 5 | UCD | DT, JT* |
| Marie Louise McGovern | f | 2002-04-19 | 2002-04-20 | 1 | NUIM | 100m |
| Miriam McGovern | f | 1992-03-07 | 1992-03-07 | 1 | NUIM | XC |
| Sarah McGowan | f | 2007-12-08 | 2009-03-07 | 3 | UU | 3000m, XC |
| Sinéad McGrane | f | 2001-11-07 | 2004-04-17 | 12 | TCD | 800m, JT, PV, Road, XC |
| Clodagh McGrath | f | 1996-02-09 | 1997-04-26 | 7 | UCC | 400m, 400mH, 4x200m, TJ, XC |
| Denise McGrath | f | 2006-11-18 | 2006-11-18 | 1 | UCD | Road |
| Fiona McGreevy | f | 2004-02-28 | 2007-04-14 | 14 | DCU, Guest, IUAA | 1500m, 5000m, 800m, Road, XC |
| Aisling McGuinness | f | 1994-01-21 | 1995-04-22 | 7 | IUAA, UCC | 200m, 400m, XC |
| Orla McGuinness | f | 1991-05-03 | 1992-04-25 | 3 | UCD | 100mH, LJ |
| T. McGurr | f | 1992-04-24 | 1992-04-25 | 1 | UCC | 100mH |
| T. McGurr | f | 1992-04-24 | 1992-04-25 | 1 | UU | 400mH |
| Emma McIlroy | f | 1999-06-22 | 1999-06-22 | 1 | NI U23 | 800m |
| Michelle McIlwaine | f | 2002-06-18 | 2002-06-18 | 2 | NI U23 | DT, HT |
| Michelle McIntosh | f | 2003-06-10 | 2003-06-10 | 3 | SU | DT, HT, SP |
| Toni McIntosh | f | 2000-03-11 | 2000-03-11 | 1 | SU | XC |
| Toni McIntosh | f | 2009-03-28 | 2009-03-28 | 1 | Scotland | XC |
| Jane McKay | f | 1997-06-24 | 1999-06-22 | 4 | SU | 200m, 400m |
| Ursula McKee | f | 1987-05-08 | 1989-05-06 | 5 | UU | 1500m, 3000m, 800m |
| Eimear McKeever | f | 1994-01-21 | 1994-01-21 | 1 | UCD | 200m |
| Forename McKenna | f | 1976-04-30 | 1976-05-01 | 1 | TCE | HJ |
| Jennifer McKenna | f | 1996-12-13 | 2003-04-26 | 45 | DCU, IUAA | 200m, 400m, 400mH, 4x100m, 4x400m, 800m, Road, XC |
| Forename McKernan | f | 1973-05-11 | 1973-05-12 | 1 | TCE | 800m |
| M. McKernan | f | 1973-05-11 | 1973-05-12 | 1 | TCE | 1500m |
| Siobhan McKiernan | f | 1993-02-12 | 1993-02-12 | 1 | SPM | LJ |
| Katherine McKillen | f | 1994-06-28 | 1994-06-28 | 1 | NI U20 | LJ |
| Claire McKillop | f | 2003-06-10 | 2005-06-07 | 3 | Guest, NI U23 | 1500m, 800m |
| G. McKimm | f | 1997-06-24 | 1997-06-24 | 1 | NI U23 | HJ |
| C. McKinney | f | 1983-05-06 | 1984-05-05 | 2 | QUB | 100mH, HJ |
| Heather McLarnon | f | 2006-11-18 | 2010-04-24 | 15 | QUB | 1500m, 3000m, 3000mSC, 800m, Road, XC |
| Katie McLean | f | 2010-02-13 | 2010-04-24 | 5 | TCD | 1500mW, 3000mSC, 800m, XC |
| Sofie McLean | f | 1993-12-04 | 1993-12-04 | 1 | TCD | XC |
| Ethna McLoone | f | 1998-12-11 | 2003-04-26 | 36 | IUAA, TCD | 100mH, 8kgWfD, CE, DT, HJ, HT, LJ, SP, TJ |
| Margaret McLoone | f | 1996-02-09 | 1996-02-10 | 2 | UL | 60m |
| Mary McLoone | f | 2000-12-01 | 2005-06-07 | 104 | IUAA, TCD | 100m, 100mH, 200m, 400m, 400mH, 4x100m, 4x200m, 4x400m, 60mH, CE, HJ, LJ, Road, SP, TJ, XC |
| Caroline McLoughlin | f | 1990-04-27 | 1990-04-28 | 1 | DCU | 1500m |
| Sarah McLoughlin | f | 2009-02-14 | 2010-04-24 | 9 | UCC | 8kgWfD, DT, HT, SP |
| Coleen McMahon | f | 2004-06-08 | 2004-06-08 | 1 | NI U23 | 400mH |
| Emmanuel McMahon | f | 1999-03-06 | 2000-11-12 | 12 | IUAA, UCD | 1500m, 4x400m, 800m, Road, XC |
| Emmanuelle McMahon | f | 1996-12-13 | 2000-03-11 | 12 | Dublin Colleges, IUAA, UCD | 1500m, 4x200m, 4x400m, 800m, XC |
| L. McMahon | f | 1984-05-04 | 1984-05-05 | 1 | NUU | 1500m |
| Lisa McMahon | f | 2008-03-08 | 2008-03-08 | 1 | WIT | XC |
| Una McMahon | f | 1986-05-02 | 1989-05-06 | 5 | NIHED | DT, JT* |
| Susan McManus | f | 2009-02-14 | 2009-04-25 | 3 | DCU | 12, 4, 8, 16, 1500m, 400mH |
| Deirdre McMaugh | f | 2000-11-12 | 2004-04-17 | 14 | Guest, QUB | 1500m, 1500mW, 60mH, CE, Road, SP |
| Mairead McMorrow | f | 2008-11-15 | 2010-04-24 | 6 | TCD | 1500mW, 800m, JT, Road, XC |
| Rhiannon McNally | f | 2004-06-08 | 2005-06-07 | 5 | NI U23 | DT, HT, SP |
| Claire McNameara | f | 2006-12-02 | 2010-04-24 | 22 | NUIG | 60mH, CE, HJ, LJ, SP |
| Kelly McNeice | f | 1993-06-22 | 1998-06-23 | 7 | NI U20, NI U23 | 1500m, 3000m, 800m |
| Aoife McNeil | f | 2003-11-22 | 2004-04-17 | 7 | DIT | 100m, 200m, 60m, Road |
| Lindsay McNeill | f | 2000-03-11 | 2000-03-11 | 1 | SU | XC |
| Louise McNeill | f | 2005-04-22 | 2006-11-18 | 4 | QUB | 5000m, Road, XC |
| Eva McNelis | f | 2003-11-22 | 2009-03-07 | 17 | UU | 1500m, 3000mSC, 400mH, 4x400m, 60mH, 800m, CE, HJ, LJ, Road, SP, XC |
| Lorraine McNicholas | f | 1999-11-13 | 1999-11-13 | 1 | NUIM | Road |
| E. McNicholl | f | 1992-04-24 | 1992-04-25 | 1 | QUB | 100m |
| Jane McNicholl | f | 1968-05-11 | 1972-05-06 | 15 | TCD | 1500m, 400m, 440y, 800m, 880y, DT, JT* |
| Deirdre McNulty | f | 1997-02-01 | 1997-02-01 | 1 | UU | XC |
| Sile McNulty | f | 1994-01-21 | 1994-01-21 | 2 | TCD | 60mH, LJ |
| Anne McPhail | f | 1995-06-20 | 1998-03-14 | 4 | SU | 1500m, 3000m, 400m, XC |
| Rose McPhilemy | f | 2009-11-14 | 2009-11-14 | 1 | TCD | Road |
| Moira McQuillan | f | 2000-04-14 | 2000-04-15 | 1 | RCSI | 1500m |
| Paula McQuillan | f | 1996-02-09 | 1996-02-10 | 2 | UCD | 60m, LJ |
| Ailís McSweeney | f | 2001-12-07 | 2007-04-14 | 51 | DCU, IUAA, UCC | 100m, 200m, 4x100m, 4x200m, 4x400m, 60m, 8kgWfD |
| Claire McSweeney | f | 2005-12-10 | 2009-04-25 | 8 | DCU | 400m, 800m |
| Natalie McSweeney | f | 2004-12-03 | 2004-12-04 | 1 | UCC | 800m |
| Judith McVicker | f | 1993-06-22 | 1994-06-28 | 2 | NI U20 | 400mH |
| Elizabeth McWilliams | f | 2001-06-19 | 2001-06-19 | 1 | NI U23 | 800m |
| Doireann Meade | f | 2009-02-14 | 2009-02-15 | 1 | Dundalk IT | LJ |
| Fiona Meade | f | 2000-12-01 | 2001-12-08 | 8 | TCD | 100m, 100mH, 60m, 60mH |
| Gabrielle Meade | f | 1995-06-20 | 1995-06-20 | 1 | H & Y | 800m |
| Mary Margaret Meade | f | 1992-03-07 | 2007-04-14 | 9 | Guest, IUAA, UU | 1500m, 3000m, 5000m, Road, XC |
| Edel Meagher | f | 1995-04-21 | 1997-06-24 | 23 | Guest, IUAA, Waterford RTC, WIT | 4x200m, DT, HT, JT*, SP |
| Shauna Meanen | f | 1997-12-12 | 1997-12-13 | 1 | QUB | LJ |
| Cliona Meaney | f | 1995-12-16 | 1999-11-13 | 6 | CIT, Cork RTC, UCC | DT, Road, SP, XC |
| Carol Meehan | f | 1998-02-28 | 2000-02-26 | 5 | TCD | 1500m, Road, XC |
| Francine Meehan | f | 1998-02-28 | 2000-04-15 | 8 | DIT | 1500m, 3000m, Road, XC |
| Julia Meinhardt | f | 1995-12-16 | 1996-02-10 | 3 | UCC | HJ, LJ, XC |
| D. Mellerick | f | 1975-05-02 | 1975-05-03 | 1 | UCC | 3000m |
| Liz Melvin | f | 2008-04-18 | 2010-04-24 | 10 | TCD | 100m, 200m, 4x100m, 4x200m |
| Niobe Menendez | f | 1994-01-21 | 1996-06-25 | 3 | Guest, UL | 1500m, 3000m, XC |
| Seema Menon | f | 2000-04-14 | 2000-04-15 | 3 | RCSI | 100m, LJ, TJ |
| Phillipa Mensah-Quainoo | f | 2001-04-20 | 2001-04-21 | 1 | RCSI | 100m |
| Sarah Mescall | f | 2004-11-20 | 2007-02-24 | 6 | NUIG | 3000m, Road, XC |
| Sarah Mescoll | f | 2009-11-14 | 2009-11-14 | 1 | QUB | Road |
| Katherine Michael | f | 1995-12-16 | 1996-02-10 | 2 | DIT, Guest | 800m, XC |
| Natalie Middleton | f | 1999-06-22 | 1999-06-22 | 2 | SU | 100m, 200m |
| Emma Miles | f | 2007-02-24 | 2007-02-24 | 1 | UU | XC |
| Alison Miller | f | 2004-02-06 | 2008-04-19 | 22 | WIT | 200m, 400mH, 4x100m, 4x200m, 4x400m, 60mH, 800m, CE, HJ, LJ, SP, TJ |
| Clare Miller | f | 1998-03-14 | 1998-03-14 | 1 | SU | XC |
| L. Miller | f | 1982-04-30 | 1984-05-05 | 6 | QUB | DT, JT*, SP |
| Karen Mills | f | 1993-04-23 | 1994-06-28 | 9 | IUAA, UU | 100m, 200m, 60m |
| Ruth Mills | f | 2003-11-22 | 2007-04-14 | 21 | Guest, President's Select, UCD | 1500m, 3000m, 4x100m, 4x200m, 4x400m, 5000m, Road, TJ, XC |
| Ciara Mitchell | f | 2004-11-20 | 2005-02-26 | 3 | QUB | Road, XC |
| Kerry Mitchell | f | 1997-06-24 | 2002-04-20 | 18 | Guest, IUAA, NI U23, UU | 100m, 200m, 400mH, 4x100m, 4x400m, 60mH |
| Rebecca Mitchell | f | 1999-06-22 | 2002-06-18 | 7 | NI U23 | 100mH, 400mH |
| Rebecca Mitchell | f | 1999-06-22 | 1999-06-22 | 1 | SU | 200m |
| Jessica Mitszewski | f | 1995-06-20 | 1995-06-20 | 1 | H & Y | 3000m |
| Sinead Moffatt | f | 1998-06-23 | 1998-06-23 | 2 | SU | LJ, TJ |
| Jenny Moffett | f | 2000-12-01 | 2000-12-02 | 2 | QUB | 200m, 60mH |
| Alison Moffitt | f | 1992-04-24 | 1993-06-22 | 4 | Guest, IUAA, QUB | DT, JT*, SP |
| Grainne Moggan | f | 2009-04-24 | 2010-04-24 | 11 | UCD | 100mH, 4x100m, HJ, LJ, SP, TJ |
| Rioghna Moggan | f | 2005-12-10 | 2009-04-25 | 26 | TCD | 100m, 200m, 4x100m, 4x200m, 4x400m, 60m |
| Jennifer Molloy | f | 2003-04-25 | 2003-04-26 | 4 | TCD | 8kgWfD, DT, HT, JT |
| Sarah Jane Molloy | f | 2005-04-22 | 2005-04-23 | 4 | Dundalk IT | 100m, 200m |
| Sinead Moloney | f | 2009-02-14 | 2010-04-24 | 19 | UCD | 4x100m, 4x400m, 60mH, CE, DT, HJ, JT, LJ, SP |
| Orla Molony | f | 2005-04-22 | 2005-04-23 | 3 | QUB | 100m, 4x100m, TJ |
| Orla Molony | f | 2000-11-12 | 2000-12-02 | 2 | UCD | Road, TJ |
| Edel Monaghan | f | 1995-12-16 | 1995-12-16 | 1 | UCG | XC |
| Sharon Monahan | f | 2003-11-22 | 2006-03-04 | 3 | DCU | Road, XC |
| Lyndsey Monteith | f | 2003-06-10 | 2010-04-24 | 29 | Guest, IUAA, NI U23, UU | 100m, 1500m, 200m, 400m, 4x200m, 4x400m, 800m, Road, XC |
| Robyn Monteith | f | 2000-06-20 | 2000-06-20 | 1 | NI U23 | 400m |
| Julie Moodie | f | 1993-06-22 | 1993-06-22 | 1 | NI U20 | 800m |
| Tara Mooney | f | 2000-06-20 | 2000-06-20 | 1 | NI U23 | PV |
| Edwina Moore | f | 2000-11-12 | 2000-11-12 | 1 | TCD | Road |
| Jenny Moore | f | 1996-02-17 | 1996-02-17 | 1 | TCD | XC |
| Jenny Moore | f | 2005-06-07 | 2005-06-07 | 1 | Guest | 800m |
| Louise Moore | f | 2005-02-26 | 2007-02-24 | 3 | AIT | 5000m, XC |
| Lucy Moore | f | 1999-12-03 | 2000-12-02 | 8 | TCD | DT, HJ, JT, SP, TJ |
| Lucy Moore | f | 1976-04-30 | 1982-05-01 | 13 | UCD | 100mH, HJ, LJ, SP |
| Lucy Moore | f | 2008-04-18 | 2010-04-24 | 9 | UCD | 8kgWfD, DT, HT, SP, TJ |
| Aine Moran | f | 2010-03-13 | 2010-03-13 | 1 | UCC | XC |
| Aisling Moran | f | 2010-03-13 | 2010-03-13 | 1 | UCC | XC |
| Hannah Moran | f | 2006-12-02 | 2006-12-03 | 4 | DCU | 1500mW, 8kgWfD, PV, SP |
| Patricia Moran | f | 1972-05-05 | 1978-05-06 | 7 | TCD | 100m, 200m |
| Shauna Moran | f | 2009-11-14 | 2010-04-07 | 2 | UCD | 1500m, Road |
| Louise Moriarty | f | 1998-04-24 | 2001-04-21 | 8 | TCD | 110mH, 200m, 400m, LJ, Road |
| Aileen Morison | f | 2007-12-08 | 2008-03-08 | 2 | UU | 3000m, XC |
| Andrea Moroney | f | 2007-12-08 | 2007-12-09 | 2 | TCD | 8kgWfD, SP |
| M. Moroney | f | 1979-05-04 | 1982-05-01 | 5 | TCE | 100mH, 800m |
| Mary Moroney | f | 1996-02-09 | 1996-02-10 | 1 | SPM | 60m |
| Shannon Morris | f | 2003-03-09 | 2003-03-09 | 1 | UCC | XC |
| Fionnuala Morrish | f | 1979-05-04 | 1984-05-05 | 6 | UCC | 1500m, 3000m |
| C. Morrison | f | 1994-06-28 | 1994-06-28 | 1 | NI U20 | 100mH |
| J. Morrison | f | 1994-06-28 | 1994-06-28 | 2 | NI U20 | 100m, 200m |
| Jane Morrissey | f | 2001-04-20 | 2001-04-21 | 1 | RCSI | 1500mW |
| M. Morrissey | f | 1987-05-08 | 1987-05-09 | 1 | UCC | LJ |
| Noelle Morrissey | f | 1984-05-04 | 1984-05-05 | 2 | UCC | 100mH, LJ |
| Clare Morrow | f | 2005-11-19 | 2006-11-18 | 4 | QUB | 3000m, Road, XC |
| Michelle Morrow | f | 1981-05-01 | 1983-05-07 | 3 | UCD | 1500m, 3000m, 700mW |
| L. Mostrym | f | 1994-04-22 | 1994-04-23 | 1 | Limerick RTC | JT* |
| Nora Mulcahy | f | 2001-04-20 | 2001-04-21 | 2 | UL | 800m, PV |
| F. Muldowney | f | 1992-04-24 | 1992-04-25 | 2 | UCD, UL | 100mH, 400mH |
| Aileen Mulhall | f | 1991-05-03 | 1992-04-25 | 4 | UCD | 10000m, 1500mW, XC |
| Jacqueline Mulhall | f | 1999-04-23 | 2010-04-24 | 29 | DCU | 100m, 200m, 400m, 4x100m, 4x400m, 60m |
| Catherine Mullally | f | 1998-02-28 | 1998-02-28 | 1 | UCD | XC |
| Erin Mullan | f | 2004-06-08 | 2005-06-07 | 3 | NI U23 | 100mH, 400mH |
| Jennifer Mullan | f | 1999-04-23 | 1999-04-24 | 1 | IT Tralee | SP |
| Stacy Mullan | f | 2002-06-18 | 2005-06-07 | 3 | NI U23 | 100mH, 400mH |
| G. Mullaney | f | 1975-05-02 | 1975-05-03 | 1 | UCD | 800m |
| L. Mullett | f | 1992-04-24 | 1992-04-25 | 1 | UCD | JT* |
| Lyndsey Mulligan | f | 2003-06-10 | 2003-06-10 | 1 | NI U23 | TJ |
| Rene Mulligan | f | 2000-02-05 | 2000-04-15 | 5 | IUAA, UCD | 3000m, 5000m, XC |
| Deirdre Mullins | f | 2000-04-14 | 2000-04-15 | 1 | DCU | 1500m |
| Jennifer Mullins | f | 1999-04-23 | 2000-04-15 | 3 | IT Tralee | 60m, JT |
| Melissa Mullins | f | 1995-12-16 | 1998-04-25 | 14 | UL | 200m, 400m, 4x200m, 4x400m, JT*, XC |
| Sharon Mungall | f | 2000-06-20 | 2000-06-20 | 1 | SU | SP |
| Sinead Mungall | f | 2000-06-20 | 2000-06-20 | 1 | SU | DT |
| Janine Munnis | f | 1996-06-25 | 1996-06-25 | 1 | NI U23 | 3000m |
| Julie Munroe | f | 1996-06-25 | 1996-06-25 | 1 | SU | 1500m |
| G. Murdoch | f | 1982-04-30 | 1982-05-01 | 1 | NUU | SP |
| Áine Murphy | f | 1995-12-16 | 1997-02-01 | 3 | UCC | SP, XC |
| Ann Murphy | f | 1975-05-02 | 1977-05-07 | 6 | UCD | 1500m, 3000m |
| Aoife Murphy | f | 2000-04-14 | 2000-04-15 | 3 | UCD | 400m, LJ |
| D. Murphy | f | 1980-05-02 | 1980-05-03 | 1 | TCD | SP |
| D. Murphy | f | 1977-05-06 | 1979-05-05 | 2 | UCC | SP |
| Danielle Murphy | f | 2007-11-17 | 2008-03-08 | 2 | UL | Road, XC |
| Deirdre Murphy | f | 2002-12-06 | 2007-04-14 | 25 | UCC | 8kgWfD, DT, HT, JT, SP |
| Elaine Murphy | f | 1993-06-22 | 1995-06-20 | 3 | Guest, NI U20 | HJ |
| Ellen Murphy | f | 1998-12-11 | 2004-06-08 | 28 | IUAA, UCC | 8kgWfD, DT, HT, JT, LJ, SP |
| Ellen Murphy | f | 2005-12-10 | 2005-12-11 | 1 | UCD | SP |
| Eva Murphy | f | 2010-02-13 | 2010-02-13 | 2 | UCD | 60m |
| Hayley Murphy | f | 2008-04-18 | 2008-04-19 | 5 | WIT | 100m, 200m, 4x100m |
| Hazel Murphy | f | 2006-03-04 | 2009-04-25 | 8 | DCU, UCD | 3000m, 4x400m, 5000m, Road, XC |
| Helen Murphy | f | 1999-03-06 | 2003-04-26 | 30 | IUAA, President's Select, TCD | 1500m, 3000m, 400m, 5000m, 800m, JT, LJ, Road, XC |
| Jane Murphy | f | 2007-11-17 | 2007-11-17 | 1 | UCC | Road |
| Judith Murphy | f | 1996-06-25 | 1998-06-23 | 3 | NI U23 | 400mH |
| Karina Murphy | f | 1999-11-13 | 1999-11-13 | 1 | UCD | Road |
| Lynn Murphy | f | 2005-11-19 | 2006-12-03 | 7 | QUB | 1500m, 3000m, 3000mSC, 800m, LJ, Road |
| Lynn Esthe Murphy | f | 2006-03-04 | 2006-03-04 | 1 | QUB | XC |
| M. Murphy | f | 1972-05-05 | 1972-05-06 | 1 | TCD | 200m |
| M. Murphy | f | 1986-05-02 | 1991-05-04 | 4 | TCE | 3000m, 800m |
| M. Murphy | f | 1971-05-07 | 1974-05-04 | 6 | UCC | 1500m, 3000m, 400m, 800m |
| Mairead Murphy | f | 2007-12-08 | 2010-04-24 | 23 | UCD | 100m, 100mH, 200m, 4x100m, 4x400m, 60m, 60mH, JT, LJ, SP |
| Maria Murphy | f | 1998-02-28 | 1998-04-25 | 2 | UL | 3000m, XC |
| Mary Murphy | f | 2000-02-26 | 2000-04-15 | 2 | UCC | 3000m, XC |
| Megan Murphy | f | 2007-02-24 | 2007-02-24 | 1 | TCD | XC |
| Michelle Murphy | f | 2000-04-14 | 2000-04-15 | 2 | TCD | 100m, HT |
| N. Murphy | f | 1978-05-05 | 1981-05-02 | 4 | TCE | SP |
| Niamh Murphy | f | 1987-05-08 | 1988-04-30 | 2 | TCE | 1500m, 3000m |
| Regina Murphy | f | 1999-11-13 | 2003-04-26 | 10 | NUIG | 1500m, 4x400m, 800m, Road |
| Rhona Murphy | f | 1993-03-06 | 1994-02-19 | 2 | UCC | XC |
| Ruth Murphy | f | 1993-11-27 | 1998-02-28 | 19 | IUAA, UCD | 1500m, 3000m, 4x200m, 4x400m, 5000m, Road, XC |
| Shona Murphy | f | 1966-05-07 | 1967-05-06 | 6 | UCD | 100y, 220y, HJ, LJ |
| Sinead Murphy | f | 2003-11-22 | 2004-04-17 | 2 | UU | 4x400m, Road |
| Valerie Murphy | f | 1997-12-12 | 1998-12-12 | 7 | UCC | 1500mW, 400m, 4x100m, 4x200m, XC |
| Zara Murphy | f | 2001-11-07 | 2006-03-04 | 15 | IUAA, UCC | 1500m, 3000m, 4x100m, 4x400m, Road, XC |
| Zita Murphy | f | 2001-04-20 | 2006-04-22 | 45 | IUAA, UCD, WIT | 100m, 200m, 4x100m, 4x200m, 4x400m, 60m |
| Aoife Murray | f | 2001-11-07 | 2006-04-22 | 41 | UCD | 100mH, 1500m, 1500mW, 200m, 3000m, 3000mSC, 4x100m, 4x200m, 4x400m, 5000m, CE, HJ, LJ, Road, SP, XC |
| Eve Murray | f | 2003-04-25 | 2003-04-26 | 4 | DCU | 4x100m, 4x400m, 8kgWfD, DT |
| Ruth Murray | f | 2003-04-25 | 2003-04-26 | 3 | DCU | 8kgWfD, DT, SP |
| Helena Murrin | f | 1993-02-12 | 1994-01-21 | 5 | IUAA, UCD | DT, JT*, SP |
| Alison Musgrave | f | 1993-12-04 | 1995-03-04 | 3 | TCD | XC |
| Judith Myers | f | 2001-06-19 | 2001-06-19 | 1 | NI U23 | TJ |