| - | 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 |
|---|---|---|---|---|---|---|
| Declan Caddell | m | 1990-03-03 | 1990-03-03 | 1 | UU | XC |
| Eduardo Cadena Torres | m | 2011-03-12 | 2011-03-12 | 1 | UCC | XC |
| Daniel Caffery | m | 1993-11-27 | 1994-04-23 | 3 | SPM | 1500m, Road |
| Gerard "Ger" Cagney | m | 1988-03-01 | 1996-04-20 | 25 | IUAA, QUB, UCD | 1500m, 3000mSC, 400mH, 5000m, 800m, XC |
| Barry Cahill | m | 2002-11-16 | 2003-04-26 | 2 | UL | 10000m, Road |
| Connor Cahill | m | 2013-04-12 | 2013-04-13 | 1 | IT Blanchardstown | LJ |
| James Cahill | m | 2006-12-02 | 2006-12-03 | 1 | NUIG | 1500m |
| Neil Caldwell | m | 1993-06-22 | 1998-06-23 | 6 | Guest, NI U20, NI U23 | 5000m, Mile, XC |
| Luis Calero | m | 2007-02-24 | 2007-02-24 | 1 | CIT | XC |
| D.J. Callaghan | m | 1924-05-31 | 1924-05-31 | 1 | UCC | 100y |
| Eoin Callaghan | m | 2005-11-19 | 2006-03-04 | 2 | DCU | Road, XC |
| Pte T.P. Callaghan | m | 1966-03-28 | 1966-03-28 | 1 | Army | Mile |
| Simon Callaghan | m | 2013-02-01 | 2013-02-01 | 2 | NUIG | 60mH |
| Tony Callahan | m | 2000-02-26 | 2000-02-26 | 1 | NUIG | XC |
| Derek Callan | m | 1997-12-12 | 2005-04-23 | 20 | DCU | 200m, 400m, 400mH, 4x100m, 4x200m, 4x400m, LJ |
| Myles J. Callan | m | 1988-03-01 | 1988-03-01 | 1 | TCD | XC |
| Fionnbar Callanan | m | 1949-05-26 | 1953-07-15 | 12 | UCD | 120yH, HJ, LJ, SP |
| A. Callegey | m | 1967-05-05 | 1967-05-05 | 2 | UCD | DT, SP |
| Peter Callery | m | 1963-05-11 | 1966-05-07 | 4 | IUAA, UCG | JTo |
| Ryan Calvert | m | 1998-03-14 | 2002-04-20 | 6 | NI U23, QUB | 10000m, XC |
| John Cambell | m | 2010-04-07 | 2010-04-07 | 1 | UCD | 3000m |
| Graham Cambridge | m | 2011-03-12 | 2011-03-12 | 1 | UCC | XC |
| D.H. Cameron | m | 1938-07-06 | 1939-07-01 | 5 | Atalanta | DT, JTo, SP |
| Alan Campbell | m | 2011-04-29 | 2011-04-30 | 1 | UL | LJ |
| C. Campbell | m | 1997-06-24 | 1997-06-24 | 1 | Guest | 400m |
| Chris Campbell | m | 1995-12-16 | 1997-12-13 | 11 | QUB | 2000mW, 3000m, 400m, HJ, LJ, XC |
| D. Campbell | m | 1938-07-06 | 1938-07-06 | 2 | Atalanta | 440y, 440y, 220yx2, 440y |
| D. Campbell | m | 1979-03-17 | 1979-03-17 | 1 | SPM | XC |
| David Campbell | m | 2003-11-22 | 2004-04-17 | 3 | NUIM | 1500m, Road |
| David Campbell | m | 2004-11-20 | 2006-04-22 | 8 | DCU | 1500m, 4x400m, 800m, Road, XC |
| H. Campbell | m | 1974-05-03 | 1977-05-07 | 4 | NCPE | 110mH |
| J.S. Campbell | m | 1921-06-04 | 1921-06-04 | 2 | QUB | 120yH, DT |
| P. Campbell | m | 1979-03-17 | 1982-03-06 | 4 | QUB | XC |
| Patrick Campbell | m | 1996-06-25 | 1998-06-23 | 3 | NI U23 | PV |
| Paul Campbell | m | 2002-12-06 | 2003-04-26 | 3 | TCD | PV, TJ |
| Paul Campbell | m | 1997-12-12 | 2001-12-08 | 18 | DIT | 1500m, 4x400m, 800m, Road, XC |
| Peter Campbell | m | 1984-05-04 | 1984-05-05 | 2 | TCD | 100m, 4x100m |
| Scott Campbell | m | 2003-03-22 | 2003-03-22 | 1 | SU | XC |
| T. Campbell | m | 1977-05-06 | 1977-05-07 | 1 | NCPE | 110mH |
| T. Campbell | m | 1971-05-22 | 1971-05-22 | 1 | SU | HT |
| T. Campbell | m | 1975-05-02 | 1975-05-03 | 1 | QUB | 10000m |
| Brian Campion | m | 2012-11-17 | 2012-11-17 | 1 | UL | Road |
| Conal Campion | m | 2011-02-05 | 2013-04-13 | 19 | TCD | 16kgWfD, DT, HT, JT, SP |
| J. Campion | m | 1978-03-04 | 1978-03-04 | 1 | SPM | XC |
| Loughin Campion | m | 2010-03-13 | 2011-04-30 | 4 | NUIM | 5000m, Road, XC |
| J. Camray | m | 1982-05-12 | 1982-05-12 | 1 | UCD | 400mH |
| Shane Canning | m | 2003-11-22 | 2003-11-22 | 1 | UU | Road |
| Michael "Mike" Canny | m | 1977-03-12 | 1978-03-04 | 2 | UCG | XC |
| Barry Canton | m | 2000-11-12 | 2001-04-07 | 2 | UCD | Road, XC |
| Eamonn Cantwell | m | 1958-05-18 | 1959-05-13 | 3 | NACA, UCC | JTo |
| Gary Cantwell | m | 2010-11-13 | 2012-03-10 | 6 | WIT | 10000m, 3000m, Road, XC |
| R. Cappagh | m | 1925-06-06 | 1925-06-06 | 1 | TCD | 440y |
| N.S. Capper | m | 1923-06-02 | 1925-06-06 | 6 | QUB | 100y, 220y |
| W.M. Capper | m | 1930-06-07 | 1931-05-30 | 4 | QUB | 440y, 880y |
| John Cappock | m | 1986-03-08 | 1989-05-06 | 8 | UCD | 800m, Road, XC |
| J. Carberry | m | 1972-05-05 | 1972-05-06 | 1 | UCG | TJ |
| K. Cardiff | m | 1986-05-02 | 1988-04-30 | 2 | UCD | HT |
| E. Cardwell | m | 1970-05-09 | 1970-05-09 | 1 | QUB | SP |
| Hywel Care | m | 2009-03-28 | 2009-03-28 | 1 | Wales | XC |
| John Carew | m | 2003-04-25 | 2005-12-11 | 5 | UL | 100m, 4x200m, 60m |
| Colm Carey | m | 2004-12-03 | 2004-12-04 | 1 | DIT | SP |
| D. Carey | m | 1971-05-07 | 1971-05-08 | 1 | QUB | HT |
| Darren Carey | m | 2003-04-25 | 2003-04-26 | 1 | IT Tallaght | 4x400m |
| David Carey | m | 2010-11-13 | 2011-11-12 | 2 | DCU | Road |
| Joe Carey | m | 1974-05-15 | 1978-05-17 | 17 | UCD | DT, HJ, LJ, TJ |
| John Carey | m | 2010-03-13 | 2010-11-13 | 3 | TCD | 800m, Road, XC |
| P. Carey | m | 1977-03-12 | 1979-03-17 | 2 | NUU | XC |
| Richie Carey | m | 1999-03-06 | 1999-04-24 | 3 | UCD | 3000mSC, 5000m, XC |
| Owen Carleton | m | 2005-06-07 | 2008-11-15 | 13 | NI U23, President's Select, QUB | 1500m, 3000m, 4x400m, Road, XC |
| Michael Carley | m | 1993-03-06 | 1993-03-06 | 1 | TCD | XC |
| L. Carlier | m | 1971-05-22 | 1971-05-22 | 2 | Louvain | JTo, TJ |
| B.J. Carlin | m | 1924-05-31 | 1924-05-31 | 2 | UCD | DT, SP |
| Kevin Carlin | m | 2008-11-15 | 2009-03-07 | 2 | UU | Road, XC |
| Nigel Carlisle | m | 1993-06-22 | 2001-04-21 | 19 | IUAA, NI U20, QUB, UU | 400m, 4x400m, 800m, JT, TJ |
| Aaron Carlyle | m | 2001-06-19 | 2003-06-10 | 3 | Guest, NI U23 | 400m |
| Michael Carmody | m | 2009-11-14 | 2012-11-17 | 4 | UCD, UL | 10000m, Road |
| Pablo Carnahan | m | 2002-03-09 | 2002-03-09 | 1 | UCC | XC |
| Robert Carnegie | m | 2004-11-20 | 2004-11-20 | 1 | TCD | Road |
| Desmond "Des" Carney | m | 1938-05-26 | 1939-05-27 | 2 | UCD | 440y |
| John Carney | m | 1986-03-08 | 1988-03-05 | 2 | UCC | XC |
| Eoin Carolan | m | 1998-12-11 | 2002-04-20 | 8 | TCD | 1500m, 800m, Road, TJ, XC |
| Neil Carolan | m | 1995-12-16 | 1996-02-10 | 3 | Athlone RTC, Guest | 200m, 60m, XC |
| Raymond Carolan | m | 1995-12-16 | 1995-12-16 | 1 | DIT | XC |
| P.S. Carollan | m | 1951-03-03 | 1951-03-03 | 1 | IUAA | XC |
| Danny Carr | m | 1990-03-03 | 1991-03-02 | 2 | UCG | XC |
| Danny Carr | m | 1999-03-06 | 2000-04-15 | 4 | NUIG | 10000m, XC |
| M. Carr | m | 1939-05-27 | 1939-05-27 | 1 | UCG | 880y |
| Michael Carr | m | 1999-03-06 | 2002-11-16 | 6 | TCD | Road, XC |
| J. Carroll | m | 1977-03-12 | 1978-03-04 | 2 | UCG | XC |
| John Carroll | m | 1998-12-11 | 2001-04-21 | 3 | Portobello | 400m, 60m |
| John Carroll | m | 2004-02-06 | 2005-04-23 | 5 | TCD | 35lbWfD, JT, SP |
| John Carroll | m | 1998-12-11 | 1998-12-12 | 1 | Guest | 60m |
| John Carroll | m | 2000-12-01 | 2002-04-20 | 2 | UCC | HJ, PV |
| John Donal Carroll | m | 1913-05-24 | 1914-06-06 | 2 | UCD | 56lbWfD, DT |
| M. Carroll | m | 1948-05-22 | 1948-05-22 | 1 | UCC | 880y |
| M. Gerry Carroll | m | 1965-06-22 | 1965-06-22 | 2 | NACA | 100y, 220y |
| Noel Carroll | m | 2010-02-13 | 2010-11-13 | 4 | UU | 3000m, 5000m, Road, XC |
| Noel Carroll | m | 2004-12-03 | 2007-02-24 | 5 | Guest, IT Sligo | 3000m, 3000mSC, XC |
| Oliver Carroll | m | 2000-04-14 | 2000-04-15 | 1 | IT Tallaght | LJ |
| P.J. Carroll | m | 1939-05-27 | 1939-05-27 | 1 | UCG | 220y |
| Paul Carroll | m | 2004-04-16 | 2005-04-23 | 3 | IUAA, NUIM | JT |
| W. Carroll | m | 1948-05-22 | 1948-05-22 | 1 | UCC | Mile |
| Barry Carron | m | 2005-04-22 | 2005-04-23 | 2 | UCD | 400m, 4x400m |
| Paul Carron | m | 1999-06-22 | 2003-06-10 | 17 | Guest, IUAA, NI U23, UU | 1500m, 4x400m, 800m, Road, XC |
| G. Carruth | m | 1923-06-02 | 1925-06-06 | 6 | QUB | DT, SP |
| Gillen Carruthers | m | 2000-06-20 | 2001-06-19 | 3 | NI U23 | DT, HT |
| A.S. Carson | m | 1945-06-30 | 1945-06-30 | 1 | Combined Universities | 220y |
| John W.K. Carson | m | 1973-05-16 | 1973-05-16 | 1 | TCD | LJ |
| Norman Carson | m | 2002-06-18 | 2003-06-10 | 2 | NI U23 | 200m |
| T. Carson | m | 1951-03-03 | 1951-03-03 | 1 | IUAA | XC |
| George Morrison "Morris" Carstairs | m | 1938-07-06 | 1939-07-01 | 3 | Atalanta | 2 Miles, 880y, Mile |
| Ian Carswell | m | 1995-06-20 | 1995-06-20 | 1 | H & Y | 1500m |
| Neil Carthy | m | 1988-03-05 | 1989-05-06 | 4 | QUB | 3000mSC, 5000m, XC |
| Darren Carty | m | 2001-11-07 | 2005-04-23 | 2 | TCD | 4x400m, Road |
| M. Carty | m | 1986-03-08 | 1986-03-08 | 1 | QUB | XC |
| Robert Cascone | m | 2007-04-13 | 2007-04-14 | 1 | QUB | PV |
| Colin Casey | m | 1991-05-03 | 1995-04-22 | 16 | IUAA, UL | HJ, LJ, TJ |
| David Casey | m | 1992-04-24 | 1994-04-23 | 5 | UCG | 110mH, LJ |
| Derek Casey | m | 1977-06-14 | 1977-06-14 | 1 | BLE Select | JTo |
| Des Casey | m | 1993-12-04 | 1993-12-04 | 1 | Guest | XC |
| Eoin Casey | m | 2012-11-17 | 2013-03-09 | 3 | UCC | 800m, Road, XC |
| John Casey | m | 1992-03-07 | 1995-12-16 | 3 | UCC | Road, XC |
| John Casey | m | 1993-12-04 | 1996-02-17 | 6 | UCD | 3000mSC, XC |
| Karl Casey | m | 2004-02-06 | 2005-04-23 | 11 | TCD | 110mH, 60mH, CE, HJ, LJ, SP, TJ |
| Lee Casey | m | 2009-11-14 | 2009-11-14 | 1 | UL | Road |
| M. Casey | m | 1986-05-02 | 1986-05-03 | 1 | RCSI | 800m |
| M. Casey | m | 1939-05-27 | 1939-05-27 | 1 | UCC | Mile |
| Patrick Casey | m | 1994-02-19 | 1994-02-19 | 1 | UCD | XC |
| Paul Casey | m | 1995-03-04 | 1996-04-20 | 3 | TCD | 1500m, XC |
| T. Casey | m | 1975-03-08 | 1977-03-12 | 3 | SPM | XC |
| Eamonn Martin Cashell | m | 1975-05-21 | 1977-05-17 | 5 | TCD | 200m, 400m |
| Eamonn Cashin | m | 2000-04-14 | 2000-04-15 | 1 | UCC | 3000mW |
| D. Cashman | m | 1976-03-06 | 1980-03-01 | 4 | UCC | XC |
| Johnny Cashman | m | 1993-03-06 | 1999-06-22 | 49 | IUAA, UCC | 1500m, 400m, 4x200m, 4x400m, 800m, Road, XC |
| G. Cassells | m | 1980-05-02 | 1982-05-12 | 5 | UCD | 110mH, LJ |
| Brendan Cassidy | m | 1984-05-04 | 1984-05-05 | 1 | TCD | 400mH |
| Cormac Cassidy | m | 2012-11-17 | 2013-02-01 | 3 | CAI, TCD | 3000m, Road |
| Danny Cassidy | m | 1996-12-13 | 1996-12-14 | 1 | UCC | 2000mW |
| Donnacha Cassidy | m | 1996-12-13 | 1996-12-14 | 4 | UCC | 200m, 4x200m, 60m |
| Gerard Cassidy | m | 1969-11-29 | 1969-11-29 | 1 | UCD | XC |
| M.A. Cassidy | m | 1939-05-27 | 1939-05-27 | 2 | UCD | 880y, Mile |
| Maruice Cassidy | m | 1963-05-22 | 1963-05-22 | 1 | UCD | 3 Miles |
| Michael Cassidy | m | 2011-03-12 | 2013-04-13 | 7 | UCC | 4x400m, Road, XC |
| N. Cassidy | m | 1977-03-12 | 1977-03-12 | 1 | SPM | XC |
| P. Cassidy | m | 1973-03-10 | 1973-03-10 | 1 | SPM | XC |
| Paddy Cassidy | m | 1998-12-11 | 2003-06-10 | 28 | IUAA, TCD | 10000m, 1500m, 3000m, 3000mSC, 5000m, Road, XC |
| Pat Cassidy | m | 1971-12-11 | 1972-05-06 | 3 | UCD | 800m, XC |
| Patrick Cassidy | m | 2004-11-20 | 2008-11-15 | 14 | QUB | 1500m, 200m, 5000m, 800m, LJ, Road, XC |
| Jose-Maria Castillo | m | 1995-12-16 | 1996-04-20 | 3 | TCD | 10000m, XC |
| David Cather | m | 2002-11-16 | 2005-02-26 | 8 | QUB | 1500m, 2000mW, Road, XC |
| Don Caulfield | m | 2001-12-07 | 2001-12-08 | 2 | IT Tralee | 4x200m, 60m |
| Eoin Caulfield | m | 2011-02-05 | 2011-02-05 | 1 | TCD | 3000m |
| Quentin Caulfield | m | 1996-06-25 | 1997-06-24 | 3 | NI U23 | DT, SP |
| Philip Cavanagh | m | 2005-11-19 | 2006-04-22 | 3 | DCU | 3000mW, 4x400m, Road |
| Stephen Cavanagh | m | 2000-11-12 | 2000-11-12 | 1 | DIT | Road |
| Tom Cavanagh | m | 1952-05-22 | 1954-05-22 | 6 | UCC | 100y, 220y, 440y |
| N. Cawley | m | 1988-04-29 | 1988-04-30 | 1 | QUB | 10000m |
| Marceline J. Chabrel | m | 1873-05-19 | 1874-05-16 | 4 | UCC | 100y, 120yH |
| Will Chambers | m | 1995-06-20 | 1995-06-20 | 2 | SU | DT, SP |
| Ho-Kei Chan | m | 2009-11-14 | 2010-03-13 | 2 | TCD | Road, XC |
| A. Chane | m | 1986-03-08 | 1986-03-08 | 1 | NIHEL | XC |
| Ian Chaney | m | 2002-11-16 | 2006-04-22 | 17 | DCU, Guest, President's Select | 10000m, 1500m, 3000mW, 4x400m, Road, XC |
| Arif Chapiti | m | 2013-02-01 | 2013-04-13 | 2 | UCD | LJ |
| Ricky Chapman | m | 2007-11-17 | 2008-03-08 | 2 | TCD | Road, XC |
| Quentin Charignon | m | 2013-02-01 | 2013-04-13 | 2 | DCU | PV |
| Richard Chasser | m | 2003-06-10 | 2003-06-10 | 1 | SU | 200m |
| Larry Cheevers | m | 1964-05-09 | 1968-05-11 | 13 | UCD, UCG | DT, SP |
| J. Cherry | m | 1945-06-30 | 1945-06-30 | 1 | NIAAA Select | 120yH |
| John E.C. Cherry | m | 1926-06-05 | 1928-06-02 | 8 | IUAA, TCD | 100y, 220y, 440y, 440y, 220yx2, 880y |
| Kevin Chesser | m | 2011-11-12 | 2013-04-13 | 6 | UL | 1500m, 800m, Road |
| Richard Chesser | m | 2002-06-18 | 2002-06-18 | 2 | SU | 100m, 200m |
| Rory Chesser | m | 2004-11-20 | 2009-04-25 | 21 | IUAA, UL | 1500m, 3000m, 3000mSC, 5000m, M, Road, XC |
| Richard Chessor | m | 2003-06-10 | 2003-06-10 | 1 | SU | 100m |
| A. Chestnut | m | 1979-05-04 | 1982-05-01 | 3 | QUB | 400mH |
| C. Chestnut | m | 1981-05-01 | 1981-05-02 | 1 | QUB | 400mH |
| Adrian Cheung | m | 2004-04-16 | 2004-04-17 | 3 | RCSI | 100m, 4x100m, LJ |
| Samuel Chew | m | 1994-04-22 | 1994-04-23 | 2 | RCSI | 110mH |
| Jeremy Chinamasa | m | 2010-04-23 | 2010-04-24 | 1 | TCD | DT |
| Siong Ching | m | 1996-02-09 | 1996-02-10 | 1 | UCC | 60mH |
| Alan Chivers | m | 1968-03-02 | 1969-05-03 | 4 | QUB | Mile, XC |
| Herbert Donald Chomse | m | 1937-05-22 | 1938-07-06 | 2 | IUAA, TCD | 880y |
| Brian Christensen | m | 2001-11-07 | 2001-11-07 | 1 | TCD | Road |
| E.C. Christian | m | 1952-05-22 | 1953-07-15 | 3 | UCC | DT, SP |
| Cian Christie | m | 2011-02-05 | 2011-02-05 | 2 | DCU | 60m |
| J. Christie | m | 1945-06-30 | 1945-06-30 | 1 | NIAAA Select | LJ |
| James "Jim" Christie | m | 1976-04-30 | 1978-05-06 | 9 | IUAA, QUB | 100m, 200m |
| Mark Christie | m | 2003-11-22 | 2008-04-19 | 14 | DCU | 10000m, 5000m, Road, XC |
| Dimitri Nicos Chrysostomou | m | 1988-04-29 | 1990-04-28 | 4 | TCD | HT, SP |
| Gerard Claffey | m | 2010-03-13 | 2013-04-13 | 21 | TCD | 1000m, 1500m, 4x100m, 4x400m, 800m, Road, XC |
| P.J. Claffey | m | 1979-03-17 | 1979-03-17 | 1 | UCD | XC |
| Adam Clancy | m | 2009-11-14 | 2012-03-10 | 4 | UU | 5000m, Road, XC |
| K. Clancy | m | 1986-03-08 | 1986-03-08 | 1 | NIHEL | XC |
| Kieran Clancy | m | 2000-11-12 | 2000-12-02 | 2 | UL | 800m, Road |
| M. Clancy | m | 1962-02-17 | 1962-02-17 | 1 | UCD | XC |
| Michael "Mick" Clancy | m | 1961-06-01 | 1963-02-16 | 5 | IUAA, UCD | 880y, Mile, XC |
| P. Clancy | m | 1988-04-29 | 1989-05-06 | 4 | NIHEL | 100m, 200m, 400mH |
| P. Clancy | m | 1988-04-29 | 1988-04-30 | 1 | TCE | 100m |
| Peter Clancy | m | 1991-05-03 | 1992-04-25 | 3 | UL | 110mH, 400mH |
| Ray Clancy | m | 1964-05-31 | 1964-05-31 | 2 | NACA | 440y, 880y |
| M. Clare | m | 1958-05-18 | 1958-05-18 | 1 | NACA | TJ |
| Alexander Forbes "Alastair" Clark | m | 1927-06-28 | 1927-06-28 | 3 | Atalanta | 100y, 120yH, LJ |
| J. Clark | m | 1938-07-06 | 1938-07-06 | 2 | Atalanta | 220y, 440y, 220yx2, 440y |
| Austin Clarke | m | 1961-05-14 | 1964-05-31 | 3 | NACA | 4x110y, 880y |
| Desmond John Clarke | m | 1964-05-20 | 1965-06-23 | 6 | IUAA, TCD | 440y, 4x110y, 880y |
| George Clarke | m | 1994-04-22 | 1996-04-20 | 2 | QUB | HJ |
| J. Clarke | m | 1996-04-19 | 1996-04-20 | 1 | ILSI | 35lbWfD |
| J. Clarke | m | 1996-04-19 | 1996-04-20 | 1 | ILSI | SP |
| Nicholas Clarke | m | 2012-02-04 | 2012-04-21 | 4 | TCD | 16kgWfD, SP |
| Patrick Clarke | m | 1999-12-03 | 1999-12-04 | 1 | NUIM | 4x200m |
| Tim Clarke | m | 2012-03-10 | 2012-03-10 | 1 | UCC | XC |
| W. Clarke | m | 1971-05-22 | 1971-05-22 | 2 | SU | LJ, TJ |
| Will Clarke | m | 1993-11-27 | 1994-01-21 | 2 | SPM | 3000m, Road |
| Jim Clarken | m | 1991-03-02 | 1991-03-02 | 1 | UU | XC |
| Joseph Clarken | m | 1990-03-03 | 1990-03-03 | 1 | UCG | XC |
| Mark Clayman | m | 1995-06-17 | 1995-06-20 | 2 | H & Y | DT |
| Dara Clear | m | 1994-04-22 | 1994-04-23 | 1 | SPM | 1500m |
| Eoin Cleare | m | 2012-04-20 | 2012-04-21 | 1 | Guest | SS |
| Gregóir Cleary | m | 1997-02-01 | 1999-04-24 | 7 | UCD | 3000mW, 5000m, XC |
| Stephen Cleary | m | 1999-04-23 | 2002-04-20 | 6 | NUIM | 3000m, 3000mSC, Road, XC |
| Stephen Cleary | m | 2008-11-15 | 2013-03-09 | 7 | DCU | Road, XC |
| Noel Clerkin | m | 1988-03-05 | 1990-03-03 | 3 | UU | 800m, XC |
| Basil Clifford | m | 1964-05-30 | 1965-06-23 | 2 | AAUE | Mile |
| Daniel Clifford | m | 2007-12-08 | 2012-04-21 | 15 | IT Tralee | DT, SP |
| Mark Clifford | m | 2012-11-17 | 2013-04-13 | 4 | CIT | 3000mSC, 4x400m, Road, XC |
| Michael Clohisey | m | 2005-02-26 | 2008-04-19 | 7 | Guest, UCD | 5000m, Road, XC |
| Mick Clohissey | m | 2006-11-18 | 2007-02-24 | 2 | UCD | Road, XC |
| Robin Clugstone | m | 1998-06-23 | 1998-06-23 | 1 | SU | 110mH |
| Fergus Clune | m | 1957-05-18 | 1958-05-18 | 2 | NACA, UCD | 440y |
| John Francis Clutterbuck | m | 1969-05-03 | 1969-05-15 | 3 | TCD | DT, SP |
| J. Clyde | m | 1986-03-08 | 1986-03-08 | 1 | QUB | XC |
| Andy Coady | m | 1985-05-03 | 1985-05-04 | 1 | UCC | HT |
| B. Coady | m | 1978-05-05 | 1978-05-06 | 1 | UCD | 400m |
| Alan Coakley | m | 2005-11-19 | 2006-03-04 | 2 | TCD | Road, XC |
| Ciaran Coakley | m | 1977-06-14 | 1977-06-14 | 1 | BLE Select | 100m |
| Ciaran Coakley | m | 1967-05-27 | 1967-05-27 | 2 | Army | 100y, 220y |
| Donal Coakley | m | 2005-11-19 | 2009-04-25 | 8 | UCC | 5000m, Road, XC |
| Peter Coary | m | 2003-03-09 | 2003-11-22 | 4 | DCU, IUAA | 3000mSC, Road, XC |
| Peter Coary | m | 2001-11-07 | 2001-11-07 | 1 | NUIM | Road |
| M. Cod | m | 1990-04-27 | 1990-04-28 | 1 | UCD | 3000mW |
| P. Cody | m | 1978-05-17 | 1978-05-17 | 1 | UCD | 400m |
| John C. Coetzee | m | 1920-06-05 | 1920-06-05 | 1 | TCD | SP |
| Diarmuid Coffe | m | 2007-02-24 | 2007-04-14 | 6 | CIT | 16kgWfD, 5000m, DT, HT, SP, XC |
| Diarmuid Coffey | m | 2008-03-08 | 2008-03-08 | 1 | CIT | XC |
| Gerard Coffey | m | 1996-04-19 | 1996-04-20 | 3 | UL | 35lbWfD, HT, JT |
| J. Coffey | m | 1914-06-06 | 1914-06-06 | 1 | UCD | SP |
| Shane Coffey | m | 2007-02-24 | 2008-03-08 | 3 | UCC | Road, XC |
| Nathan Cofolla | m | 2012-04-20 | 2013-04-13 | 3 | AIT | LJ |
| E. Cogan | m | 1974-05-15 | 1974-05-15 | 2 | UCD | 100m, 400mH |
| Eamonn Coghlan | m | 1977-06-14 | 1977-06-14 | 1 | Ireland | 3000m |
| Gareth Coghlan | m | 2001-12-07 | 2005-04-23 | 10 | IUAA, UCD | 3000m, 3000mSC, 400mH, 5000m, Road |
| John Coghlan | m | 2007-11-17 | 2013-04-13 | 20 | DCU | 1500m, 3000m, 5000m, Road, XC |
| John Coghlan | m | 1998-12-11 | 2001-04-21 | 8 | UL | 100m, 60m |
| David Cogley | m | 1979-05-04 | 1980-05-14 | 4 | UCD | 100m, 110mH |
| Michael Colbert | m | 1969-03-01 | 1971-02-20 | 2 | UCC | XC |
| Ben Cole | m | 2008-03-28 | 2008-03-28 | 1 | SU | M |
| Brian Cole | m | 1992-04-24 | 1992-04-25 | 1 | QUB | HJ |
| Andrew Coleman | m | 2000-11-12 | 2005-02-26 | 12 | UCD | 10000m, 1500m, 3000m, Road, XC |
| Andy Coleman | m | 1977-06-14 | 1977-06-14 | 2 | BLE Select | LJ, TJ |
| Conor Coleman | m | 2010-02-13 | 2011-04-30 | 11 | DIT | 100m, 4x100m, 4x200m, 60m |
| Gavin Coleman | m | 2002-11-16 | 2005-02-26 | 8 | UCD | 800m, Road, XC |
| Geoff Coleman | m | 2010-04-07 | 2010-04-24 | 3 | UCD | 100m, LJ |
| J. Coleman | m | 1977-05-06 | 1977-05-07 | 1 | TCD | 400m |
| J.P. Coleman | m | 1928-06-02 | 1928-06-02 | 2 | UCD | 880y, Mile |
| Luke Coleman | m | 2008-11-15 | 2011-04-30 | 7 | UCD | 10000m, 3000m, 3000mSC, 800m, Road, XC |
| Mike Coleman | m | 2009-04-24 | 2009-04-25 | 1 | UL | 16kgWfD |
| Murt Coleman | m | 1967-05-05 | 1971-02-20 | 8 | UCG | 1500m, 3 Miles, Mile, XC |
| N. Coleman | m | 1977-05-06 | 1978-05-17 | 4 | UCD | TJ |
| P. Coleman | m | 1975-05-02 | 1976-05-01 | 2 | NCPE | 400m |
| Ronan Coleman | m | 1994-01-21 | 1994-01-21 | 1 | UL | 400m |
| Barry Colfer | m | 2004-11-20 | 2008-11-15 | 6 | UCD | Road, XC |
| J. Colgan | m | 1992-04-24 | 1992-04-25 | 1 | QUB | 3000mW |
| P. Colgan | m | 1992-04-24 | 1992-04-25 | 1 | QUB | 35lbWfD |
| P. Colleran | m | 1931-05-30 | 1931-05-30 | 1 | UCG | Mile |
| M. Colleton | m | 1967-05-27 | 1967-05-27 | 1 | BLE | SP |
| A. Collins | m | 1975-05-02 | 1975-05-03 | 2 | UCC | DT, SP |
| Ciaran Collins | m | 2007-02-24 | 2008-11-15 | 2 | UU | Road, XC |
| Ciaran Collins | m | 2007-12-08 | 2011-02-05 | 11 | UCC | 400m, 4x100m, 4x200m, 4x400m |
| Conor Collins | m | 2000-12-01 | 2000-12-02 | 1 | UCC | PV |
| Daniel Collins | m | 2012-11-17 | 2012-11-17 | 1 | TCD | Road |
| Diarmaid Collins | m | 2013-03-09 | 2013-04-13 | 2 | UL | 5000m, XC |
| Diarmuid Collins | m | 2004-11-20 | 2005-02-26 | 2 | UCC | Road, XC |
| Diarmuid Collins | m | 2008-03-08 | 2012-04-21 | 14 | NUIG | 10000m, 3000m, 4x400m, 5000m, Road, XC |
| DJ Collins | m | 2004-04-16 | 2005-12-11 | 8 | UL | 35lbWfD, DT, HT, SP |
| J.O. Collins | m | 1929-06-01 | 1931-05-30 | 5 | UCD | 440y, 880y |
| J.V. Collins | m | 1929-07-03 | 1929-07-03 | 1 | Atalanta | 440y |
| John Collins | m | 2008-11-15 | 2013-04-13 | 21 | CIT | 1500m, 3000m, 3000mSC, 3000mW, 4x400m, 5000m, 800m, Road, XC |
| John Collins | m | 1994-04-22 | 1994-04-23 | 2 | UCC | 400mH |
| John C. Collins | m | 1921-06-04 | 1921-06-04 | 2 | TCD | DT, SP |
| Justin Collins | m | 2004-12-03 | 2006-04-22 | 8 | AIT, IUAA | 35lbWfD, DT, SP |
| Kevin Collins | m | 1991-03-02 | 1991-03-02 | 1 | Cork RTC | XC |
| Neil Collins | m | 2006-12-02 | 2007-04-14 | 5 | TCD | 200m, 4x200m, LJ |
| Noel Collins | m | 1946-07-14 | 1948-05-22 | 5 | UCC | 880y, Mile |
| Noel Collins | m | 2009-11-14 | 2009-11-14 | 1 | UU | Road |
| Robert Collins | m | 1989-03-04 | 1991-03-02 | 5 | UCC | 5000m, Road, XC |
| Ross Collins | m | 2008-11-15 | 2010-03-13 | 5 | UCD | 10000m, 3000mW, Road, XC |
| Tom Collins | m | 1999-11-13 | 1999-11-13 | 1 | UCD | Road |
| Tony Collins | m | 1998-12-11 | 2003-02-15 | 18 | Guest, UCD | 1500m, 3000m, 3000mSC, 4x400m, HJ, LJ, Road, TJ, XC |
| Roana Colman | m | 1994-04-22 | 1994-04-23 | 1 | UL | JT |
| O'Leary Colum | m | 2013-04-12 | 2013-04-13 | 2 | TCD | 1500m, 3000mSC |
| Steven Colvert | m | 2009-02-14 | 2013-04-13 | 25 | DCU, Guest, UCD | 100m, 200m, 4x100m, 60m |
| Tomas Coman | m | 2003-04-25 | 2003-04-26 | 4 | UL | 400m, 4x400m |
| Tomas Coman | m | 1999-04-23 | 1999-04-24 | 4 | WIT | 400m, 4x400m |
| Michael Comeford | m | 1998-04-24 | 2000-04-15 | 8 | UL | 400m, 4x400m, HT |
| C. Comer | m | 1954-05-22 | 1954-05-22 | 1 | UCD | SP |
| C. Comerford | m | 1990-04-27 | 1990-04-28 | 1 | TCD | JT |
| Mark Comerford | m | 2000-04-14 | 2000-04-15 | 1 | WIT | 10000m |
| Michael Comerford | m | 1997-12-12 | 1999-12-04 | 9 | UL | 400m |
| N. Comerford | m | 1958-05-18 | 1960-05-15 | 2 | NACA | DT |
| P. Comerford | m | 1988-04-29 | 1989-05-06 | 4 | NIHED | 400mH, JT |
| P. Comerford | m | 1989-05-05 | 1989-05-06 | 1 | NIHEL | DT |
| T. Comerford | m | 1989-05-05 | 1989-05-06 | 4 | NIHED | 100m, 110mH, DT, JT |
| Norman V. Commiskey | m | 1935-05-25 | 1937-05-22 | 9 | TCD | 100y, 220y, 440y |
| Jack Commons | m | 2012-04-20 | 2012-04-21 | 3 | IT Tallaght | HT, JT, SP |
| Peter Comy | m | 1997-02-01 | 1997-02-01 | 1 | UCG | XC |
| John Comyn | m | 1960-05-15 | 1960-05-15 | 1 | NACA | 120yH |
| Tom Comyns | m | 1992-04-24 | 1992-04-25 | 2 | UL | 100m, 200m |
| Tom Comyns | m | 1994-04-22 | 2004-04-17 | 33 | Guest, IUAA, UL | 100m, 200m, 4x100m, 4x200m, 4x400m, 60m, LJ |
| P. Concannon | m | 1959-05-13 | 1959-05-17 | 2 | IUAA, UCD | HJ |
| 2nd Lt. S. Condon | m | 1961-05-14 | 1961-05-14 | 2 | Army | HJ, TJ |
| Chris Condon | m | 2004-12-03 | 2005-04-23 | 8 | UCD | 100m, 110mH, 4x100m, 4x200m, 60m, 60mH |
| Dermot Condon | m | 1998-12-11 | 1999-04-24 | 4 | CIT | 100m, 200m, 4x100m, 60m |
| G. Condon | m | 1983-03-12 | 1983-03-12 | 1 | SPM | XC |
| Kieron Condon | m | 2006-02-18 | 2006-02-18 | 1 | TCD | XC |
| Lt. S. Condon | m | 1961-05-14 | 1961-05-14 | 1 | Army | LJ |
| Patrick "Pat" Condon | m | 1964-02-15 | 1964-02-15 | 1 | UCC | XC |
| Thomas Condon | m | 2010-04-23 | 2010-04-24 | 1 | IT Blanchardstown | 200m |
| Ian Condron | m | 1978-05-05 | 1982-05-01 | 10 | QUB | 110mH, DT, JTo, LJ, PV, TJ |
| Keelan Condron | m | 1993-12-04 | 1993-12-04 | 1 | UCD | XC |
| Kieran Condron | m | 2005-02-05 | 2005-02-05 | 1 | UCD | XC |
| Edgar Geddes Condy | m | 1939-07-01 | 1939-07-01 | 1 | IUAA | DT |
| Michael Conerney | m | 2012-04-20 | 2012-04-21 | 1 | UCC | DT |
| ?. Coneys | m | 1970-05-09 | 1970-05-09 | 1 | RCSI | 800m |
| Keelan Conlon | m | 1993-11-27 | 1996-02-10 | 18 | UCD | 200m, 400m, 4x200m, LJ, Road |
| P.J. Conlon | m | 1913-05-24 | 1913-05-24 | 1 | UCD | HJ |
| Mark Connaughton | m | 1979-03-17 | 1982-03-06 | 3 | UCD | XC |
| Mark Connaughton | m | 1988-03-05 | 1989-03-04 | 2 | SPM | XC |
| Niall Connaughton | m | 2003-11-22 | 2003-11-22 | 1 | UCD | Road |
| P. Conneff | m | 1961-05-14 | 1961-05-14 | 1 | NACA | 120yH |
| Walter L. Connell | m | 1924-05-31 | 1925-06-06 | 2 | TCD | 880y, Mile |
| Jerry Connelly | m | 2000-04-14 | 2000-04-15 | 1 | DIT | 100m |
| Mark Connelly | m | 2008-04-18 | 2010-04-24 | 4 | TCD | 16kgWfD, DT, HT |
| P. Connelly | m | 1986-03-08 | 1988-04-30 | 3 | NIHED | 10000m, XC |
| Terry Connelly | m | 2000-04-14 | 2000-04-15 | 1 | DIT | 200m |
| Andrew Connick | m | 2005-04-22 | 2012-04-21 | 42 | IUAA, President's Select, WIT | 10000m, 1500m, 3000m, 3000mSC, 4x200m, 4x400m, 5000m, 800m, JT, M, Road, XC |
| Shane Connick | m | 2011-02-05 | 2013-04-13 | 18 | WIT | 100m, 16kgWfD, 4x100m, CE, DT, HJ, JT, LJ, SP |
| Brian Connolly | m | 2010-11-13 | 2010-11-13 | 1 | NUIM | Road |
| Colm Connolly | m | 2000-12-01 | 2000-12-02 | 2 | NUIG | 60mH |
| David Connolly | m | 2000-04-14 | 2002-04-20 | 11 | UCD | 100m, 200m, 4x100m, 4x200m, 4x400m, DT |
| Gerry Connolly | m | 1998-02-28 | 1998-02-28 | 1 | DIT | XC |
| J. Connolly | m | 1927-06-04 | 1928-06-02 | 3 | UCC | 440y, 880y |
| Jack Connolly | m | 2009-04-24 | 2010-04-24 | 5 | Guest, NCAD | 100m, LJ, TJ |
| Jason Connolly | m | 2012-02-04 | 2012-02-04 | 1 | IT Carlow | SP |
| Jerry Connolly | m | 1997-12-12 | 1999-12-04 | 17 | DIT | 100m, 200m, 400m, 4x200m, 60m |
| John Connolly | m | 2009-03-07 | 2009-03-07 | 1 | NUIG | XC |
| John Connolly | m | 1993-06-22 | 1993-06-22 | 2 | IUAA | 110mH, 400mH |
| John Connolly | m | 1991-03-02 | 1994-05-07 | 21 | TCD | 110mH, 200m, 400mH, 60m, 60mH, CE, LJ, SP, XC |
| John Connolly | m | 1998-04-24 | 1998-04-25 | 1 | DIT | 4x100m |
| M. Connolly | m | 1979-05-04 | 1979-05-23 | 2 | TCD | 800m |
| Michael Connolly | m | 1913-05-24 | 1913-05-24 | 3 | UCC | 120yH, HJ |
| Paul Connolly | m | 2011-11-12 | 2011-11-12 | 1 | UCD | Road |
| Robert Connolly | m | 2000-02-26 | 2001-04-21 | 5 | IUAA, Portobello | 3000mSC, 4x400m, 5000m, XC |
| Vincent Connolly | m | 2011-02-05 | 2013-04-13 | 12 | AIT | 3000m, 3000mSC, 4x400m, 5000m, Road, XC |
| B. Connor | m | 1968-05-11 | 1968-05-11 | 2 | QUB | DT, SP |
| Joe Connor | m | 1998-12-11 | 1998-12-12 | 1 | IT Tralee | 3000m |
| Steven Connor | m | 1983-05-06 | 1983-05-07 | 1 | QUB | PV |
| Eddie Connors | m | 1995-02-10 | 1998-04-25 | 3 | UCD | 2000mW, 3000mW |
| C. Conroy | m | 1971-12-11 | 1971-12-11 | 1 | TCD | XC |
| C. Conroy | m | 1990-04-27 | 1990-04-28 | 1 | UCD | TJ |
| Charles Peter Conroy | m | 1973-03-10 | 1973-03-10 | 1 | TCD | XC |
| J. Conroy | m | 1979-03-17 | 1979-03-17 | 1 | TCD | XC |
| James C. Conroy | m | 1930-06-07 | 1932-05-28 | 4 | TCD | DT, SP |
| John Conroy | m | 2012-02-04 | 2013-04-13 | 2 | IT Carlow | SP |
| John Conroy | m | 1975-03-08 | 1976-03-06 | 2 | UCG | XC |
| John C. Conroy | m | 1931-05-30 | 1931-05-30 | 2 | TCD | DT, SP |
| Martin Conroy | m | 2001-04-07 | 2004-04-17 | 12 | NUIG | 10000m, 3000mW, 4x400m, Road, XC |
| Michael Conroy | m | 2011-03-12 | 2011-03-12 | 1 | UCD | XC |
| N. Conroy | m | 1990-03-03 | 1990-03-03 | 1 | SPM | XC |
| P. Conroy | m | 1938-05-26 | 1939-05-27 | 2 | UCG | DT |
| Patrick Conroy | m | 2000-04-14 | 2000-04-15 | 1 | NUIG | 800m |
| Sean Conroy | m | 2008-11-15 | 2008-11-15 | 1 | TCD | Road |
| Tom Conroy | m | 2001-04-20 | 2002-04-20 | 2 | CIT | JT |
| S. Convery | m | 1992-04-24 | 1992-04-25 | 4 | QUB | 200m, 35lbWfD, HT, SP |
| Brian Conway | m | 1992-04-24 | 1992-04-25 | 1 | QUB | 1500m |
| Brian Conway | m | 1995-12-16 | 1997-02-16 | 5 | Guest, UCD | 2000mW, 3000m, XC |
| Bryan Conway | m | 1992-03-07 | 2004-04-17 | 18 | QUB | 1500m, 5000m, 800m, Road, XC |
| Darragh Conway | m | 1985-05-03 | 1988-04-30 | 4 | NIHED | 110mH, 400mH |
| David Conway | m | 2012-04-20 | 2012-04-21 | 2 | AIT | 100m, 200m |
| Fergus Conway | m | 1977-05-06 | 1980-05-14 | 16 | TCD | LJ, PV, TJ |
| Gerard Conway | m | 1986-03-08 | 1987-03-07 | 2 | UU | XC |
| H. Conway | m | 1971-05-12 | 1971-12-11 | 2 | UCD | 440yH, XC |
| Harry H. Conway | m | 1920-06-05 | 1925-06-06 | 26 | UCD | 100y, 120yH, 220y, 440y, LJ |
| Henry Conway | m | 1962-05-23 | 1962-05-23 | 2 | UCD | 440y, 440yH |
| J. Conway | m | 1982-04-30 | 1982-05-01 | 1 | UCD | 400mH |
| Jack Conway | m | 1963-05-22 | 1963-05-22 | 1 | UCD | 880y |
| Mark Conway | m | 2008-11-15 | 2011-11-12 | 13 | DIT | 10000m, 400m, 4x400m, 800m, Road, XC |
| Noel Conway | m | 1995-03-04 | 2000-04-15 | 8 | NUIG, UCG | 10000m, 3000m, XC |
| Noel Conway | m | 1992-03-07 | 1996-12-14 | 10 | DCU, UL | 1500m, 3000m, 3000mSC, CE, XC |
| P. Conway | m | 1986-03-08 | 1986-03-08 | 1 | UU | XC |
| Patrick Conway | m | 1999-04-23 | 1999-04-24 | 1 | UU | 3000mW |
| Philip Conway | m | 2004-11-20 | 2005-12-11 | 8 | UCD | 3000m, 3000mSC, Road, XC |
| Philip Conway | m | 1969-07-12 | 1969-07-12 | 1 | IUAA | HT |
| Shane Conway | m | 1996-04-19 | 1998-04-25 | 2 | Guest, UCD | JT |
| Shane Conway | m | 1997-12-12 | 1998-04-25 | 5 | UCC | 3000mSC, 800m, HJ, LJ, XC |
| K. Coogan | m | 1989-05-05 | 1989-05-06 | 1 | UCG | 100m |
| Alan J. Cook | m | 1951-05-26 | 1951-05-26 | 1 | TCD | 220y |
| Eddie Cooke | m | 2005-02-26 | 2008-03-08 | 3 | QUB | Road, XC |
| Michael Cooke | m | 1989-05-05 | 1994-04-23 | 10 | IUAA, QUB | 200m, 400m, 400mH, XC |
| P. Cooke | m | 1955-05-19 | 1955-05-19 | 2 | UCD | 220y, 440y |
| Ronan Cooke | m | 2012-11-17 | 2012-11-17 | 1 | DCU | Road |
| William Coolahan | m | 1999-12-03 | 1999-12-04 | 1 | NUIM | 2000mW |
| Duncan Coombs | m | 2008-03-28 | 2008-03-28 | 1 | SU | M |
| Ben Cooney | m | 2013-02-01 | 2013-04-13 | 4 | DIT | 100m, 200m, 60m |
| J. Cooney | m | 1977-05-06 | 1977-05-07 | 1 | NCPE | JTo |
| Victor Cooney | m | 1998-02-28 | 1998-02-28 | 1 | NUIG | XC |
| Joseph Cooper | m | 2000-02-26 | 2002-03-09 | 4 | DCU | 1500m, Road, XC |
| Robert Cooper | m | 1998-04-24 | 1998-04-25 | 1 | DIT | 110mH |
| Michael Coote | m | 2003-11-22 | 2004-11-20 | 2 | UCC | Road |
| Roderic Norman Coote | m | 1937-05-22 | 1939-07-01 | 3 | IUAA, TCD | 120yH |
| Robert Corbally | m | 2007-11-17 | 2013-04-13 | 20 | IUAA, UCD | 3000m, 3000mSC, 4x400m, M, Road, XC |
| Brian Corbett | m | 1947-05-21 | 1949-05-26 | 3 | UCG | 100y, 220y, HJ |
| J. Corbett | m | 1947-05-21 | 1947-05-21 | 1 | UCG | HJ |
| Brian Corbitt | m | 1982-12-04 | 1983-03-12 | 2 | TCD | XC |
| Alan Corcoran | m | 2010-04-23 | 2010-04-24 | 3 | DIT | 400mH, 4x400m |
| Cian Corcoran | m | 2012-11-17 | 2013-03-09 | 2 | NUIG | Road, XC |
| Declan Corcoran | m | 1971-12-11 | 1975-05-03 | 11 | UCD | 3000mSC, 5000m, PV, XC |
| Douglas Corcoran | m | 1995-06-20 | 1995-06-20 | 1 | H & Y | 1500m |
| J.P. Corcoran | m | 1931-05-30 | 1931-05-30 | 3 | UCC | 100y, 220y |
| Joe Corcoran | m | 2004-02-06 | 2004-06-08 | 8 | IUAA, UCD | 110mH, 35lbWfD, CE, LJ, SP, TJ |
| John Paul Corcoran | m | 2007-11-17 | 2008-04-19 | 2 | TCD | 1500m, Road |
| Kevin Corcoran | m | 2007-11-17 | 2009-03-07 | 3 | WIT | Road, XC |
| Richard Corcoran | m | 2004-04-16 | 2004-04-17 | 2 | Guest | 1500m |
| T. Corcoran | m | 1986-03-08 | 1986-03-08 | 1 | TCE | XC |
| Chris Corey | m | 2004-11-20 | 2004-11-20 | 1 | QUB | Road |
| E. Corkey | m | 1983-05-06 | 1983-05-07 | 1 | NIHED | 3000mSC |
| Barry Cormack | m | 2005-02-05 | 2005-02-05 | 1 | TCD | XC |
| Kyle Corrigan | m | 2002-06-18 | 2005-12-11 | 3 | NI U23, UU | PV |
| S. Corrigan | m | 1963-11-16 | 1964-11-21 | 3 | UCD | 3 Miles, XC |
| David Corry | m | 1912-06-03 | 1913-05-24 | 6 | QUB | 100y, 220y |
| Peter Corry | m | 1996-12-13 | 1999-03-06 | 4 | NUIG, UCG | 3000m, 4x200m, XC |
| Joseph Cosgrave | m | 2004-02-06 | 2004-02-07 | 5 | TCD | 60mH, CE, HJ, LJ, SP |
| Matthew Cosgrave | m | 2010-04-23 | 2010-04-24 | 1 | QUB | PV |
| Páraic Cosgrave | m | 1985-05-03 | 1985-05-04 | 1 | TCD | HT |
| R. Cosgrave | m | 1964-05-09 | 1964-05-09 | 1 | UCC | LJ |
| Patrick C. Cosgrove | m | 1928-06-02 | 1928-06-02 | 1 | TCD | DT |
| Colin Costello | m | 2004-11-20 | 2005-04-23 | 3 | DCU | 4x100m, Road, XC |
| David Costello | m | 2010-11-13 | 2010-11-13 | 1 | UCD | Road |
| Eddie Costello | m | 2007-04-13 | 2010-04-24 | 3 | NUIG | 800m |
| M. Costello | m | 1955-05-19 | 1957-05-18 | 3 | UCG | PV |
| Patrick Costello | m | 2004-11-20 | 2005-02-26 | 3 | UCD | Road, XC |
| Victor Costello | m | 1988-04-29 | 1988-04-30 | 1 | Guest | SP |
| Victor Costello | m | 1993-04-23 | 1993-04-24 | 1 | UCD | SP |
| Ciaran Costelloe | m | 2006-04-21 | 2006-04-22 | 3 | DCU | 100m, 200m, 4x100m |
| Sean Costelloe | m | 2002-11-16 | 2002-11-16 | 1 | UCC | Road |
| Victor Costelloe | m | 1993-06-22 | 1993-06-22 | 1 | IUAA | SP |
| Jamie Costin | m | 1996-04-19 | 1997-04-26 | 2 | UCD | 3000mW |
| David Cotter | m | 1988-03-01 | 1991-03-02 | 4 | Guest, UCD | 400m, XC |
| E. Cotter | m | 1976-03-06 | 1976-03-06 | 1 | UCC | XC |
| Edward "Eddie" A. Cotter | m | 1913-05-24 | 1913-05-24 | 1 | UCC | 56lbWfD |
| I. Cotter | m | 1970-03-14 | 1970-03-14 | 1 | NUU | XC |
| Joseph Cotter | m | 2000-04-14 | 2000-04-15 | 1 | DCU | 1500m |
| Liam Cotter | m | 1990-03-03 | 1992-04-25 | 5 | UCC | 10000m, Road, XC |
| Michael Cotter | m | 1995-02-10 | 1995-06-20 | 2 | IUAA, UCC | 3000m, 5000m |
| Mick Cotter | m | 1995-03-04 | 1995-12-16 | 2 | UCC | XC |
| Owen Cotter | m | 1992-03-07 | 1992-03-07 | 1 | TCD | XC |
| Paul Cotter | m | 2006-11-18 | 2007-04-14 | 2 | UL | 3000mW, Road |
| Tomas Cotter | m | 2008-11-15 | 2009-04-25 | 3 | DCU | 3000mSC, Road, XC |
| W.H. Cotter | m | 1928-06-02 | 1933-05-27 | 8 | QUB | 440y, HJ, LJ |
| D. Cotton | m | 1976-03-06 | 1976-03-06 | 1 | NUU | XC |
| I. Cotton | m | 1977-03-12 | 1977-03-12 | 1 | NUU | XC |
| I. Cotton | m | 1970-05-09 | 1972-03-04 | 3 | NUU | 5000m, XC |
| Cian Coughlan | m | 2000-04-14 | 2001-04-21 | 2 | CIT | 100m, 200m |
| Conor Coughlan | m | 2008-03-08 | 2008-03-08 | 1 | UCC | XC |
| Darren Coughlan | m | 2002-04-19 | 2004-04-17 | 15 | Limerick IT | 100m, 200m, 60m |
| David Coughlan | m | 2000-04-14 | 2000-04-15 | 1 | NUIM | 1500m |
| Gareth Coughlan | m | 2004-02-06 | 2007-11-17 | 3 | UCD | 1500m, Road |
| Garrett Coughlan | m | 2005-11-19 | 2007-04-14 | 4 | UCD | 1500m, Road, XC |
| J. Coughlan | m | 1978-05-05 | 1979-05-05 | 5 | TCE | 200m, 400m, XC |
| John Coughlan | m | 1999-04-23 | 1999-12-04 | 2 | UL | 4x100m, 4x200m |
| Niall Coughlan | m | 2011-11-12 | 2011-11-12 | 1 | NUIM | Road |
| Edward Coughlin | m | 2005-11-19 | 2006-03-04 | 2 | DCU | Road, XC |
| Gary Coulter | m | 2012-04-20 | 2013-04-13 | 4 | UU | 4x100m, HJ |
| Maurice Counihan | m | 1968-11-30 | 1970-03-14 | 4 | UCD | XC |
| Niall Counihan | m | 2007-12-08 | 2009-04-25 | 7 | UL | HJ, LJ, TJ |
| Courington | m | 2000-04-14 | 2000-04-15 | 1 | QUB | 3000mSC |
| John Courrell | m | 2005-11-19 | 2006-11-18 | 2 | UCD | Road |
| Conal Courtney | m | 1975-05-02 | 1975-05-03 | 2 | UCC | 100m, 200m |
| Kyle Cowie | m | 2007-03-31 | 2007-03-31 | 1 | SU | XC |
| Neil Cowzer | m | 2005-02-05 | 2008-11-15 | 10 | UCD | 4x400m, 800m, Road, XC |
| Shane Cowzer | m | 2007-11-17 | 2010-11-13 | 12 | DIT | 400m, 4x400m, 800m, Road, XC |
| Alan F.F Cox | m | 1988-03-01 | 1993-03-06 | 11 | TCD | 10000m, 800m, XC |
| Matthew Cox | m | 2013-03-09 | 2013-04-13 | 2 | IT Blanchardstown | 10000m, XC |
| Michael Cox | m | 1989-05-05 | 1993-04-24 | 2 | UCD | 3000mW |
| Raymond Cox | m | 1980-03-01 | 1984-05-05 | 11 | UCD | 1500m, 3000mSC, 5000m, XC |
| Thomas R.F. Cox | m | 1928-06-02 | 1929-06-01 | 4 | TCD | 120yH |
| Ciaran Coyle | m | 2001-06-19 | 2002-04-20 | 2 | NI U23, UU | JT |
| Manus Coyle | m | 1990-03-03 | 1992-04-25 | 6 | QUB | 3000mSC, 3000mW, XC |
| Patrick Joseph Coyle | m | 1972-03-04 | 1979-05-05 | 12 | UCG | 10000m, 5000m, 800m, XC |
| Ronan Coyle | m | 2012-04-20 | 2013-04-13 | 9 | AIT, NUIG | 100m, 200m, 4x100m, 4x200m, 60m |
| Colin Coyne | m | 1997-02-01 | 2001-04-21 | 5 | WIT | 10000m, 5000m, XC |
| Colin Coyne | m | 1995-12-16 | 2000-03-11 | 2 | DIT, IUAA | XC |
| Kevin Craddock | m | 1994-04-22 | 1994-04-23 | 1 | UL | 35lbWfD |
| Alistair Trevor Craig | m | 1977-05-06 | 1977-05-17 | 3 | TCD | LJ |
| Ian Craig | m | 1989-05-05 | 1991-05-04 | 7 | QUB | 100m, 200m |
| J. Craig | m | 1913-05-24 | 1914-06-06 | 6 | QUB | 100y, 220y |
| J. Craig | m | 1968-05-11 | 1968-05-11 | 1 | QUB | TJ |
| James Wallace Craig | m | 1929-07-03 | 1932-05-28 | 4 | IUAA, TCD | 2 Miles, Mile |
| William Hedley Craig | m | 1912-06-03 | 1912-06-03 | 3 | TCD | 440y, 880y, Mile |
| William Johnston Craig | m | 1931-05-30 | 1931-05-30 | 1 | TCD | Mile |
| George William Craigie | m | 1935-05-25 | 1939-07-01 | 13 | IUAA, TCD | 100y, 220y, 440y, 220yx2, 440y, LJ |
| Jason Craughwell | m | 2001-12-07 | 2001-12-08 | 2 | IT Tralee | 4x200m, SP |
| D. Crawford | m | 1993-06-22 | 1993-06-22 | 1 | Guest | JT |
| Graham Crawford | m | 1993-06-22 | 1993-06-22 | 2 | SU | 3000mSC, 5000m |
| Robert "Andrew" Crawford | m | 1962-05-17 | 1964-05-30 | 6 | IUAA, TCD | HJ |
| Conor Crawley | m | 1998-04-24 | 1999-04-24 | 5 | UCD | 100m, 200m, LJ, TJ |
| David Crawley | m | 1999-04-23 | 1999-04-24 | 1 | UL | LJ |
| H.F. Crealey | m | 1924-05-31 | 1924-05-31 | 2 | QUB | 100y, 440y |
| Daniel Crean | m | 2003-11-22 | 2003-11-22 | 1 | DIT | Road |
| Conor Creedon | m | 2000-11-12 | 2001-04-07 | 2 | UCC | Road, XC |
| Conor Creen | m | 2001-11-07 | 2003-11-22 | 2 | QUB | Road |
| M. Crehan | m | 1980-03-01 | 1980-03-01 | 1 | UCG | XC |
| M. Crehan | m | 1983-05-06 | 1983-05-07 | 1 | UCC | 3000mSC |
| M. Crehan | m | 1983-03-12 | 1983-03-12 | 1 | SPM | XC |
| Martin Crehan | m | 1999-03-06 | 2001-04-07 | 2 | NUIG | XC |
| P. Crehan | m | 1982-05-12 | 1982-05-12 | 3 | UCD | DT, LJ, SP |
| Thomas Creighton | m | 2009-02-14 | 2009-02-15 | 2 | UL | LJ, TJ |
| Ger Cremin | m | 1996-12-13 | 1999-04-24 | 7 | IT Tralee, Tralee RTC | 110mH, 400mH, 60mH |
| Padraig Cremin | m | 1999-12-03 | 2002-04-20 | 20 | UCC | 110mH, 400m, 4x400m, CE, HJ, LJ, PV, SP, TJ |
| Cedric Creuss-Callaghan | m | 1984-05-04 | 1984-05-05 | 1 | TCD | HJ |
| John Lawson "Jack" Crichton | m | 1939-07-01 | 1939-07-01 | 3 | Atalanta | JTo, LJ, SP |
| A. Crillon | m | 1992-04-24 | 1992-04-25 | 1 | UL | 100m |
| K. Crilly | m | 1979-03-17 | 1979-03-17 | 1 | QUB | XC |
| D. Crocock | m | 1983-05-06 | 1983-05-07 | 1 | NIHED | 100m |
| Aylmer Crofts | m | 1873-05-19 | 1873-05-19 | 1 | UCC | 2 Miles |
| James Crofts | m | 1873-05-19 | 1874-05-16 | 2 | UCC | 4Mile W |
| Patrick Crogan | m | 2000-11-12 | 2000-11-12 | 1 | UCD | Road |
| Daniel Croly | m | 1874-05-16 | 1874-05-16 | 1 | UCC | 440y |
| David Cronan | m | 2009-02-14 | 2009-04-25 | 2 | UL | 60m, LJ |
| A. Cronin | m | 1999-04-23 | 1999-04-24 | 1 | CIT | 4x400m |
| Aonghus Cronin | m | 1996-12-13 | 1996-12-14 | 1 | CIT | 200m |
| Arthur Cronin | m | 1985-05-03 | 1985-05-04 | 1 | UCC | LJ |
| Ciaran Cronin | m | 2009-02-14 | 2009-04-25 | 3 | UCD | LJ, TJ |
| D. Cronin | m | 1979-03-17 | 1979-03-17 | 1 | UCC | XC |
| D.J. Cronin | m | 1975-03-08 | 1975-03-08 | 1 | UCG | XC |
| F. Cronin | m | 1947-05-21 | 1947-05-21 | 1 | UCD | Mile |
| J.J. Cronin | m | 1913-05-24 | 1913-05-24 | 1 | UCC | 56lbWfD |
| Joe Cronin | m | 2008-11-15 | 2008-11-15 | 1 | UCC | Road |
| John Cronin | m | 1979-03-17 | 1982-03-06 | 5 | UCG | 800m, XC |
| Michael Cronin | m | 2011-04-29 | 2011-04-30 | 4 | CIT | 100m, 200m, 400mH, 4x100m |
| P.J. Cronin | m | 1978-03-04 | 1979-03-17 | 2 | UCG | XC |
| Tadhg Cronin | m | 2005-11-19 | 2005-11-19 | 1 | UL | Road |
| Philip Crosbe | m | 2013-02-01 | 2013-02-01 | 1 | WIT | 16kgWfD |
| Billy Crosbie | m | 2010-11-13 | 2013-03-09 | 9 | DIT | 400m, 800m, Road, XC |
| Polo Crosbie | m | 2010-11-13 | 2010-11-13 | 1 | TCD | Road |
| Ray Crosbie | m | 1998-04-24 | 1998-04-25 | 1 | UCD | DT |
| S. Cross | m | 1987-05-08 | 1987-05-09 | 1 | QUB | LJ |
| Gary Crossan | m | 1995-12-16 | 1998-06-23 | 13 | IUAA, Limavady HEC, UU | 10000m, 1500m, 3000m, 3000mSC, 5000m, Mile, XC |
| Gerard Crossan | m | 2007-12-08 | 2010-04-24 | 8 | NUIG | 200m, 400m, 4x100m, 4x200m, 4x400m |
| Patrick Crossan | m | 1983-05-06 | 1987-05-09 | 7 | QUB | 400m, 4x400m |
| Andy Crothers | m | 2009-11-14 | 2011-03-12 | 3 | UU | Road, XC |
| B. Crotty | m | 1988-04-29 | 1990-04-28 | 7 | UCC | 100m, 200m |
| Jim Crotty | m | 1985-05-03 | 1985-05-04 | 1 | UCC | 100m |
| Jim Crotty | m | 1980-05-02 | 1980-05-03 | 2 | UCC | 100m, 200m |
| Owen Crotty | m | 1980-05-02 | 1980-05-03 | 2 | UCC | 200m, 400m |
| Tom Crotty | m | 1980-05-02 | 1985-05-04 | 3 | UCC | DT, SP |
| Louis C. Crowe | m | 1950-05-17 | 1950-05-17 | 3 | UCD | 100y, 220y, 880y, 220yx2, 440y |
| Paul Crowe | m | 2007-12-08 | 2007-12-09 | 1 | Guest | SP |
| Tim Crowe | m | 1974-05-03 | 1977-06-14 | 6 | BLE Select, NCPE | 200m, 400m, 400mH, XC |
| Timmy Crowe | m | 2011-04-29 | 2013-04-13 | 13 | DCU, UL | 200m, 400m, 400mH, 4x100m, 4x400m |
| Brendan Crowley | m | 1972-05-05 | 1974-05-04 | 4 | UCC | 200m, 400mH |
| Christopher Crowley | m | 2005-12-10 | 2006-04-22 | 8 | CIT | 110mH, 4x100m, CE, HJ, LJ, SP |
| Christopher Crowley | m | 2006-12-02 | 2010-04-24 | 36 | DCU | 110mH, 4x100m, 4x200m, 60mH, CE, HJ, JT, LJ, PV, SP, TJ |
| Conor Crowley | m | 1998-04-24 | 2000-04-15 | 9 | UCD | 4x100m, 4x200m, 60mH, LJ, SP, TJ |
| Dave Crowley | m | 1999-12-03 | 2000-04-15 | 9 | UL | 200m, 4x200m, LJ, TJ |
| Diarmuid Crowley | m | 2010-11-13 | 2011-03-12 | 2 | UL | Road, XC |
| J. Crowley | m | 1983-03-12 | 1983-03-12 | 1 | UCC | XC |
| John Crowley | m | 2006-04-21 | 2010-04-24 | 30 | Guest, UCD | 100m, 16kgWfD, 200m, 4x100m, 4x200m, 60m, SP |
| John Crowley | m | 2006-04-21 | 2006-04-22 | 2 | Guest | 100m |
| Noel Crowley | m | 2010-11-13 | 2010-11-13 | 1 | UCC | Road |
| P. Crowley | m | 1986-03-08 | 1986-03-08 | 1 | UCC | XC |
| Ronan Crowley | m | 2003-03-09 | 2004-11-20 | 6 | NUIG | 1500m, Road, XC |
| Adam Crowther | m | 2010-04-23 | 2013-02-01 | 4 | IT Blanchardstown | 100m, 4x100m, 60m |
| Eddie Crozier | m | 2003-11-22 | 2006-04-22 | 3 | UU | 2000mW, 3000mW, Road |
| Frank Cruess Callaghan | m | 1953-07-15 | 1956-05-16 | 6 | UCD | 120yH, HJ, JTo, LJ, PV |
| Aonghus Crumin | m | 1996-12-13 | 1996-12-14 | 1 | CIT | 60m |
| Patrick Cryan | m | 2000-02-26 | 2000-02-26 | 1 | Portobello | XC |
| Alistair Culbert | m | 2003-11-22 | 2003-11-22 | 1 | UU | Road |
| Patric Cullan | m | 2002-04-19 | 2002-04-20 | 5 | RCSI | 35lbWfD, 4x400m, HT, JT, SP |
| Donal Cullen | m | 1954-05-22 | 1962-05-23 | 20 | IUAA, UCD | 120yH, 440y, 880y, Mile, XC |
| Eddie Cullen | m | 1961-05-14 | 1961-05-14 | 1 | IUAA | Mile |
| Emmet J. Cullen | m | 1960-05-14 | 1961-05-06 | 3 | IUAA, UCC | 880y, Mile |
| Joe Cullen | m | 2002-04-19 | 2002-04-20 | 3 | RCSI | 400mH, 4x400m, LJ |
| M. Cullen | m | 1983-05-06 | 1983-05-07 | 1 | QUB | 400m |
| Neil Cullen | m | 2007-11-17 | 2010-04-24 | 15 | TCD | 100m, 110mH, 12, 4, 8, 16, 200m, 400m, 4x100m, 4x200m, 4x400m, 60m, CE, HJ, LJ, Road, SP |
| Tom Cullen | m | 2009-11-14 | 2009-11-14 | 1 | UCC | Road |
| Cian Cullinan | m | 1999-11-13 | 1999-11-13 | 2 | TCD | Road |
| Brian Cullinane | m | 1997-12-12 | 1998-12-12 | 9 | UL | 200m, 4x100m, 4x200m, 4x400m, 60m, PV |
| D. Cullinane | m | 1977-03-12 | 1977-03-12 | 1 | UCC | XC |
| Shane Cullinane | m | 2004-12-03 | 2005-04-23 | 8 | UCC | 110mH, 4x100m, 60mH, HJ, LJ |
| Garrett Culliton | m | 2012-04-20 | 2012-04-21 | 1 | Guest | DP |
| P. Culloo | m | 1983-03-12 | 1983-03-12 | 1 | NIHEL | XC |
| Scott Culpepper | m | 2000-04-14 | 2001-04-21 | 2 | RCSI | 5000m |
| Kevin Cumisky | m | 1996-02-09 | 1996-02-10 | 2 | Guest | 1500m |
| Scott Cumming | m | 1994-06-28 | 1994-06-28 | 1 | SU | 400m |
| Cdt. Jimmy Cummins | m | 1963-05-19 | 1963-05-19 | 1 | Army | Mile |
| Eoin Cummins | m | 1999-03-06 | 2007-04-14 | 25 | UCD | 1500m, 4x400m, 800m, Road, XC |
| Jonathan Cummins | m | 2006-11-18 | 2006-11-18 | 1 | TCD | Road |
| L. Cummins | m | 1967-05-05 | 1967-05-05 | 1 | UCC | 440yH |
| Lt John "Junior" Cummins | m | 1967-05-27 | 1967-05-27 | 1 | Army | Mile |
| Lt Junior Cummins | m | 1964-05-31 | 1965-06-22 | 2 | Army | 880y, Mile |
| Mark Cummins | m | 2010-11-13 | 2012-04-21 | 7 | CIT | 4x400m, 800m, PV, Road, XC |
| Owen Cummins | m | 2009-11-14 | 2010-03-13 | 2 | UCC | Road, XC |
| Paul Cummins | m | 2013-02-01 | 2013-02-01 | 1 | IT Carlow | 400m |
| Tom Cummins | m | 1993-02-12 | 1996-12-14 | 23 | IUAA, UL | 100m, 200m, 4x200m, 60m |
| Gerry Cummiskey | m | 1972-05-05 | 1974-05-15 | 6 | UCD | 400m, 4x100m, 800m |
| Joe Cummiskey | m | 1966-03-28 | 1972-05-10 | 22 | IUAA, UCD | 100y, 200m, 220y, 4x100m, 4x110y |
| C. Cunane | m | 1989-05-05 | 1989-05-06 | 1 | NIHED | 400m |
| James C. Cunnane | m | 1968-05-11 | 1968-05-11 | 1 | UCG | 440yH |
| K. Cunnane | m | 1986-03-08 | 1990-04-28 | 6 | DCU, NIHED | HJ, LJ, TJ, XC |
| John Cunniffe | m | 1996-11-23 | 2004-01-24 | 27 | Guest, TCD | 2000mW, 3000mW, Road, XC |
| Damian Cunningham | m | 2000-11-12 | 2002-03-09 | 5 | UL | 2000mW, 3000mSC, Road, XC |
| Dean Cunningham | m | 2001-04-20 | 2001-04-21 | 1 | WIT | LJ |
| Ger Cunningham | m | 2007-12-08 | 2009-04-25 | 10 | CIT | 200m, 400m, 4x100m, 4x200m, 4x400m, 60m, SP |
| J. Cunningham | m | 1983-03-12 | 1983-03-12 | 1 | SPM | XC |
| Joe Cunningham | m | 1958-05-18 | 1960-05-15 | 3 | NACA | Mile |
| Kieren Cunningham | m | 2006-11-18 | 2009-04-25 | 6 | UCC | 12, 4, 8, 16, 3000m, 4x400m, 800m, Road, XC |
| Niall Cunningham | m | 2002-12-06 | 2005-12-11 | 15 | UU | 110mH, 200m, 35lbWfD, 400m, 60mH, CE, HJ, LJ, SP, TJ |
| Niall Cunningham | m | 2004-12-03 | 2004-12-04 | 1 | IT Sligo | 1500m |
| P. Cunningham | m | 1988-03-05 | 1988-03-05 | 1 | SPM | XC |
| P. Cunningham | m | 1988-04-29 | 1990-04-28 | 3 | UCG | 110mH, 400mH |
| Tom Cunningham | m | 1993-03-06 | 1993-03-06 | 1 | UL | XC |
| Tom Cunningham | m | 2008-03-28 | 2009-03-28 | 2 | SU | M, XC |
| Derek Cunnion | m | 1996-02-09 | 1998-04-25 | 7 | DCU | 200m, 4x200m, 60m, 800m |
| D. Curley | m | 1988-04-29 | 1988-04-30 | 1 | TCE | 100m |
| Damien Curley | m | 1985-05-03 | 1985-05-04 | 2 | UCD | 200m, 400m |
| N Curley | m | 1955-05-19 | 1955-05-19 | 1 | UCC | Mile |
| Conor Curran | m | 1993-06-22 | 1995-06-20 | 6 | IUAA, NI U20, QUB | 1500m, 3000mSC, Road, XC |
| Darren Curran | m | 2005-12-10 | 2007-04-14 | 4 | NUIG | 4x100m, 4x200m, LJ, Road |
| E. Curran | m | 1988-04-29 | 1988-04-30 | 1 | NIHED | JT |
| Eric Curran | m | 2011-11-12 | 2013-04-13 | 6 | UCC | 1500m, 800m, Road, XC |
| Eugene Curran | m | 1982-04-30 | 1985-05-04 | 7 | TCD | 1500m, 4x400m, 800m, XC |
| Eugene Curran | m | 1987-05-08 | 1987-05-09 | 1 | TCE | 1500m |
| Finbar Curran | m | 2001-04-20 | 2001-04-21 | 1 | CIT | 100m |
| Michael Curran | m | 2004-02-06 | 2004-02-07 | 5 | Letterkenny IT | 60mH, CE, HJ, LJ, SP |
| N. Curran | m | 1972-03-04 | 1973-03-10 | 2 | QUB | XC |
| Patrick Curran | m | 1995-04-08 | 1996-04-20 | 4 | UL | 400m, 400mH, CE |
| Paul Curran | m | 1994-06-28 | 1998-06-23 | 4 | Guest, NI U23 | 110mH, 3000mSC, HJ, TJ |
| Ronan Curran | m | 1998-12-11 | 2001-04-21 | 5 | IUAA, UCC | PV |
| S. Curran | m | 1987-05-08 | 1987-05-09 | 1 | UCD | 110mH |
| Paul Curtayne | m | 1994-02-19 | 1998-02-28 | 8 | TCD, UCD | 1500m, Road, SP, XC |
| Brendan Curtin | m | 1972-05-05 | 1981-05-13 | 42 | UCD | 110mH, 4x100m, DT, HJ, JTo, LJ, PV, SP, TJ |
| Brendan James Curtin | m | 1985-05-03 | 1985-05-04 | 4 | TCD | 110mH, JTo, LJ, SP |
| Brian M. Curtin | m | 1976-04-30 | 1976-05-01 | 5 | TCD | 110mH, DT, HJ, JTo, SP |
| G. Curtin | m | 1976-12-04 | 1977-03-12 | 2 | UCD | XC |
| J.P. Curtin | m | 1959-05-17 | 1960-05-15 | 2 | NACA | HJ |
| T. Curtin | m | 1983-03-12 | 1984-05-05 | 3 | QUB | 3000mSC, 5000m, XC |
| Gerry Curtis | m | 1995-06-17 | 1995-06-17 | 1 | Dublin | 5000m |
| Dermot Christian Cusack | m | 1929-06-01 | 1930-06-07 | 4 | IUAA, TCD | 220y, 440y, 880y, 220yx2, 440y |
| H. Cusack | m | 1968-05-11 | 1968-05-11 | 2 | QUB | DT, SP |
| John W. Cusack | m | 1927-06-04 | 1928-06-02 | 5 | TCD | 220y, 440y, 880y |
| Neil Cusack | m | 1977-06-14 | 1977-06-14 | 1 | BLE Select | 5000m |
| Colin Frank Cusick | m | 1972-05-10 | 1972-05-10 | 2 | TCD | 1500m, 800m |
| Denis John Cussen | m | 1920-06-05 | 1925-06-06 | 20 | TCD | 100y, 120yH, 220y, DT, LJ, SP |
| Robert Joseph Cussen | m | 1924-05-31 | 1927-06-28 | 7 | IUAA, TCD | 100y, 120yH, LJ |
| Pat Custy | m | 1994-04-22 | 1994-04-23 | 1 | UCG | SP |
| M. Cadogan | f | 1978-05-05 | 1980-05-03 | 9 | NCPE, TCE | 1500m, 3000m, XC |
| J. Cahill | f | 1973-05-16 | 1973-05-16 | 1 | TCD | 400m |
| Jane Cahill | f | 2000-11-12 | 2004-02-28 | 11 | Guest, NUIM | 3000m, 5000m, Road, XC |
| Patricia Cahill | f | 1996-02-09 | 1997-06-24 | 10 | Guest, IUAA, Waterford RTC, WIT | 4x200m, LJ, TJ |
| Trish Cahill | f | 1996-12-13 | 1998-04-25 | 9 | WIT | 4x100m, 4x200m, HJ, LJ, TJ |
| Isabelle Cairns | f | 2013-03-09 | 2013-03-09 | 1 | TCD | XC |
| Patricia Callan | f | 1990-03-03 | 1994-02-19 | 4 | UCD | 3000m, XC |
| Trisha Callan | f | 1992-03-07 | 1992-03-07 | 1 | UCD | XC |
| Christina Alexandra Campbell | f | 1979-05-23 | 1979-05-23 | 3 | TCD | 100m, 200m, 4x100m |
| Helen Campbell | f | 1998-12-11 | 2002-04-20 | 13 | QUB | 100m, 4x100m, 4x200m, 60m, SP |
| Josephine "Joey" Campbell | f | 1988-02-01 | 1992-03-07 | 7 | UCG | 3000m, Road, XC |
| Joy Campbell | f | 1999-06-22 | 1999-06-22 | 1 | NI U23 | 400m |
| Karen Campbell | f | 2001-12-07 | 2002-04-20 | 7 | NUIG | 100m, 200m, 4x200m, 60m |
| Katrina Campbell | f | 1992-04-24 | 2001-06-19 | 23 | IUAA, QUB | 4x100m, JT, JTo, SP |
| Louise Campbell | f | 2001-04-20 | 2002-04-20 | 2 | RCSI | 5000m |
| Louise Campbell | f | 1995-06-20 | 1996-06-25 | 2 | NI U23 | HT |
| M. Campbell | f | 1981-03-07 | 1983-05-07 | 3 | UCG | 800m, XC |
| Michelle Campbell | f | 2004-12-03 | 2005-04-23 | 2 | UL | 1500mW, 4x100m |
| Natalee Campbell | f | 1995-06-17 | 1995-06-20 | 3 | H & Y | 100m, 200m |
| Patricia Campbell | f | 1987-05-08 | 1987-05-09 | 1 | UCG | 3000m |
| Pauline Campbell | f | 1987-03-07 | 1992-04-25 | 7 | UCG | 10000m, 3000m, XC |
| Rosaleen Campbell | f | 1985-03-09 | 1988-03-05 | 6 | UCG | 3000m, Road, XC |
| Stephanie Campbell | f | 2000-06-20 | 2000-06-20 | 1 | NI U23 | 1500m |
| Stephanie Campbell | f | 2004-02-28 | 2007-02-24 | 4 | UU | 1500mW, 3000m, XC |
| Laura Canning | f | 1984-05-04 | 1986-05-03 | 7 | UCD | 100m, 200m, 400m, 4x400m |
| Nicola Canning | f | 1992-04-24 | 1994-04-23 | 4 | TCD | 1500mW, DT, JT, JTo |
| Shauna Cannon | f | 2010-02-13 | 2013-02-01 | 21 | UCD | 100m, 200m, 400m, 4x100m, 4x200m, 4x400m |
| Charlotte E.L. "Lotte" Cantley | f | 1985-03-09 | 1985-05-04 | 2 | TCD | 3000m, XC |
| Lynne Cantwell | f | 1999-12-03 | 2001-12-08 | 18 | IUAA, UL | 100mH, 200m, 400m, 400mH, 4x200m, 4x400m, 60mH, LJ, PV |
| Elaine Cardiff | f | 2004-02-06 | 2007-04-14 | 28 | UL | 200m, 400m, 4x100m, 4x200m, 4x400m |
| Margaret Carew | f | 1999-04-23 | 1999-12-04 | 7 | WIT | 4x100m, 4x200m, 4x400m, 800m |
| Elizabeth "Liz" Carey | f | 1988-02-01 | 1991-05-04 | 7 | UCD | 1500mW, 400m, 400mH, Road, XC |
| Jackie Carey | f | 1994-01-21 | 1994-04-23 | 6 | UCG | 100m, 200m, 60m, XC |
| M. Carey | f | 1973-05-11 | 1974-05-04 | 4 | UCG | 200m, 400m, HJ, LJ |
| M. Carey | f | 1969-05-03 | 1969-05-03 | 1 | UCG | Mile |
| B. Carian | f | 1983-05-06 | 1983-05-07 | 1 | TCE | 1500m |
| J. Carian | f | 1983-05-06 | 1983-05-07 | 2 | TCE | 700mW, 800m |
| Desiree Carlberg | f | 1998-04-24 | 1998-04-25 | 2 | UL | LJ, TJ |
| R. Carnell | f | 1980-05-02 | 1980-05-03 | 1 | TCD | 1500m |
| J. Carney | f | 1981-05-13 | 1982-05-12 | 2 | UCD | 1500m |
| Ruth Carney | f | 1989-05-05 | 1992-03-07 | 2 | NUIM, SPM | 200m, XC |
| Tracey Carney | f | 2005-04-22 | 2006-04-22 | 4 | WIT | 100m, 200m, 4x400m |
| Treacy Carney | f | 2004-02-06 | 2005-04-23 | 8 | WIT | 100m, 200m, 4x100m, 60m |
| Amy Carolan | f | 2001-11-07 | 2004-11-20 | 4 | UCD | Road, XC |
| Donna Carolan | f | 2009-02-14 | 2010-04-24 | 3 | DCU | 1500mW, Road |
| B. Carr | f | 1970-05-09 | 1971-02-20 | 3 | UCG | 100m, 4x100m, XC |
| P. Carr | f | 1970-05-09 | 1970-05-09 | 1 | UCG | DT |
| I. Carrian | f | 1980-05-02 | 1980-05-03 | 1 | TCE | 400m |
| A. Carroll | f | 1970-05-09 | 1970-05-09 | 1 | UCD | 400m |
| Ailbhe Carroll | f | 2011-03-12 | 2011-03-12 | 1 | UL | XC |
| Alexandrea Carroll | f | 2012-11-17 | 2012-11-17 | 1 | TCD | Road |
| Anne-Marie Carroll | f | 2001-02-24 | 2005-04-23 | 7 | UCD | 1500mW, 3000m, DT, SP, XC |
| Brona Carroll | f | 2004-11-20 | 2004-11-20 | 1 | UCD | Road |
| Bronagh Carroll | f | 1998-12-11 | 1998-12-12 | 2 | DIT | LJ, SP |
| Catherine Carroll | f | 1997-12-12 | 2000-11-12 | 20 | IUAA, Queen's Select, UCC | 400m, 400mH, 4x200m, 4x400m, PV, Road, XC |
| Martina Carroll | f | 2012-11-17 | 2012-11-17 | 1 | NUIG | Road |
| Maura Carroll | f | 1999-03-06 | 1999-03-06 | 1 | UCC | XC |
| Norma Carroll | f | 1999-03-06 | 1999-04-24 | 2 | CIT | 1500m, XC |
| Sarah Carrott | f | 1996-06-25 | 1996-06-25 | 1 | SU | 1500m |
| C. Carson | f | 1983-03-12 | 1983-05-07 | 2 | NUU | 800m, XC |
| Kathryn Carson | f | 2002-06-18 | 2010-02-13 | 25 | Guest, NI U23, UU | 100m, 200m, 20lb WfD, 4x100m, 4x200m, 60m, LJ, SP |
| Ruth Carson | f | 2004-12-03 | 2010-04-24 | 31 | TCD | 100m, 200m, 4x100m, 4x200m, 60m, DT, LJ |
| Sharon Carstairs | f | 2001-06-19 | 2001-06-19 | 1 | SU | 100m |
| Katriona Carter | f | 2001-12-07 | 2001-12-08 | 1 | UCC | PV |
| Denise Carty | f | 2001-12-07 | 2001-12-08 | 2 | UCD | LJ, SP |
| Isabelle Caseux | f | 1997-12-12 | 1998-02-28 | 3 | UCD | 800m, XC |
| Caoimhe Casey | f | 2009-04-24 | 2013-04-13 | 13 | UCC | 1500m, 1500mW, Road, XC |
| Louise Casey | f | 1988-03-01 | 1988-04-30 | 3 | UCD | 100m, 800m, XC |
| Monica Casey | f | 1996-02-09 | 1996-02-10 | 2 | Guest | 200m, 60m |
| S. Casey | f | 1979-03-17 | 1979-03-17 | 1 | NUU | XC |
| Terri Casey | f | 1982-03-06 | 1982-03-06 | 1 | NUU | XC |
| Paula Cash | f | 1985-05-03 | 1987-05-09 | 5 | UCD | 100mH, LJ |
| M. Cashel | f | 1971-02-20 | 1971-02-20 | 1 | QUB | XC |
| Aileen Cashman | f | 1991-03-02 | 1991-03-02 | 1 | SPM | XC |
| Diane Cashman | f | 1999-12-03 | 2003-04-26 | 23 | CIT, IUAA, UCC | 8kgWfD, DT, HT, JT, SP, XC |
| Miriam Cashman | f | 2007-11-17 | 2011-03-12 | 5 | UL | 1500m, 3000m, Road, XC |
| Kathryn Casserly | f | 2002-12-06 | 2004-06-08 | 8 | IUAA, NUIG | 3000m, 4x400m, 5000m, XC |
| Teresa Casserly | f | 1989-05-05 | 1990-03-03 | 2 | TCD | 800m, XC |
| H. Cassidy | f | 1990-03-03 | 1990-03-03 | 1 | DCU | XC |
| Maria Castera-Brugada | f | 2005-04-22 | 2005-04-23 | 1 | Guest | 1500mW |
| Mary Caulfield | f | 1982-03-06 | 1982-03-06 | 1 | SPM | XC |
| Louise Cavanagh | f | 1988-02-01 | 1995-06-17 | 35 | Guest, IUAA, UCC, UCD | 1500m, 1500mW, 3000m, 800m, DT, Road, XC |
| Rachael Cave | f | 2010-11-13 | 2010-11-13 | 1 | UU | Road |
| S. Caves | f | 1967-05-05 | 1967-05-05 | 1 | QUB | 880y |
| Julia Chabrier | f | 2004-11-20 | 2005-04-23 | 4 | TCD | 3000mSC, Road, XC |
| M. Chadwick | f | 1979-03-17 | 1979-03-17 | 1 | TCD | XC |
| K. Chaloner | f | 1976-03-06 | 1976-03-06 | 1 | NUU | XC |
| Ruth Chamberlain | f | 2001-06-19 | 2001-06-19 | 2 | SU | 1500m, 3000m |
| F. Chambers | f | 1986-03-08 | 1988-04-30 | 3 | TCE | 1500m, XC |
| Siobhan Chambers | f | 1989-03-04 | 1991-03-02 | 5 | UCD | 10000m, 3000m, XC |
| Sarah Chamney | f | 2004-02-28 | 2005-02-26 | 2 | TCD | XC |
| Lisa Chapman | f | 1995-12-16 | 1995-12-16 | 1 | UU | XC |
| P. Cherry | f | 1975-12-13 | 1977-03-12 | 3 | UCD | XC |
| Hynes Christina | f | 2012-04-20 | 2012-04-21 | 1 | IT Carlow | 1500mW |
| Marilyn Cittadini | f | 2007-12-08 | 2007-12-09 | 4 | QUB | 200m, 4x200m, 60m, LJ |
| Juliet Claffey | f | 1996-12-13 | 2000-06-20 | 28 | IUAA, UL | 1500mW, 200m, 3000m, 400m, 400mH, 4x100m, 4x400m, 60mH, 800m, HT, PV, TJ |
| Caroline Clancy | f | 1999-12-03 | 2000-04-15 | 3 | NUIG | 1500m, XC |
| Nora Ann Clancy | f | 1979-05-23 | 1979-05-23 | 1 | TCD | SP |
| Cassandra Clark | f | 2000-11-12 | 2000-12-02 | 3 | TCD | 800m, Road |
| Anna "Georgina" Clarke | f | 1967-06-01 | 1967-06-01 | 1 | TCD | 440y |
| Eileen Clarke | f | 1993-03-06 | 1993-03-06 | 1 | UU | XC |
| G. Clarke | f | 1977-06-14 | 1977-06-14 | 1 | Birmingham | 1500m |
| M. Clarke | f | 1968-05-11 | 1969-03-01 | 2 | UCG | 880y, XC |
| Mary Delia Clarke | f | 1985-05-03 | 1993-03-06 | 10 | TCD | 10000m, 1500m, 4x400m, XC |
| Pamela Clarke | f | 2013-03-09 | 2013-03-09 | 1 | TCD | XC |
| Roisin Clarke | f | 2006-11-18 | 2007-02-24 | 2 | UCD | Road, XC |
| Fiona Clasper | f | 2001-06-19 | 2001-06-19 | 2 | SU | HT, SP |
| Doireann Cleary | f | 2004-11-20 | 2004-11-20 | 1 | UCC | Road |
| Evelyn Cleary | f | 2004-11-20 | 2004-11-20 | 1 | UCC | Road |
| Fiona Clinton | f | 2007-11-17 | 2012-04-21 | 16 | CAI, Guest, UCD | 1500m, 3000m, 3000mSC, 4x400m, 5000m, LJ, Road, XC |
| Olivia Clinton | f | 1983-05-06 | 1985-05-04 | 6 | UCD | 1500m, 400m, 4x400m, 800m, XC |
| Gillian Clyne | f | 1999-11-13 | 1999-11-13 | 1 | DIT | Road |
| Sari Coakley | f | 2011-11-12 | 2011-11-12 | 1 | TCD | Road |
| Jane Coates | f | 1995-06-20 | 1996-06-25 | 4 | SU | 100m, 200m, 400m |
| Catherine Coffey | f | 1983-03-12 | 1986-05-03 | 5 | UCC | 400m, 800m, XC |
| Emmy Coffey | f | 2011-04-29 | 2011-04-30 | 2 | UCD | JT, LJ |
| Karen Coffey | f | 1993-03-06 | 1994-02-19 | 6 | UCD | 10000m, 3000m, Road, XC |
| Emmy Coffey Nguyen | f | 2012-04-20 | 2012-04-21 | 2 | UCD | JT, SP |
| Sinead Coghlan | f | 1992-03-07 | 1992-03-07 | 1 | UL | XC |
| Avene Cole | f | 2008-04-18 | 2008-04-19 | 1 | DIT | 800m |
| Kate Coleman | f | 2009-11-14 | 2010-02-13 | 3 | UCD | 800m, Road |
| Michelle Coleman | f | 2009-04-24 | 2009-04-25 | 1 | TCD | HJ |
| Stephaine Coleman | f | 2010-03-13 | 2010-03-13 | 1 | IT Tallaght | XC |
| Deirdre Colgan | f | 1997-12-12 | 1998-04-25 | 2 | UCD | 110mH, 60mH |
| Barbara Colleary | f | 1995-06-20 | 1995-06-20 | 2 | SU | 1500m, 800m |
| Ailbhe Collins | f | 2011-03-12 | 2012-11-17 | 2 | RCSI | Road, XC |
| Ailbhe Collins | f | 2006-12-02 | 2009-04-25 | 15 | UCC | 12, 4, 8, 16, 200m, 400m, 4x100m, 4x200m, 4x400m, Road |
| Claire Collins | f | 2012-04-20 | 2013-04-13 | 3 | UCC | HJ |
| Edel Collins | f | 1999-11-13 | 1999-12-04 | 2 | UCC | 200m, Road |
| Niamh Collins | f | 2005-11-19 | 2005-11-19 | 1 | TCD | Road |
| Ruth Collins | f | 2000-12-01 | 2004-04-17 | 21 | TCD | 200m, 400m, 4x100m, 4x200m, 60m, CE, DT, HJ, LJ, PV, Road, SP |
| Sinead Collins | f | 1999-11-13 | 2000-11-12 | 4 | UCC | 1500mW, 60m, Road |
| Michelle Colman | f | 1988-03-01 | 1988-03-01 | 1 | TCD | XC |
| A. Cologgley | f | 1976-03-06 | 1976-03-06 | 1 | NUU | XC |
| Chrissi Coluzzi | f | 1992-03-07 | 1992-03-07 | 1 | UCC | XC |
| Rosaleigh Comerford | f | 1996-02-09 | 1998-12-12 | 7 | IT Tralee, Tralee RTC, UCC | 1500mW, SP |
| L. Concannon | f | 1989-05-05 | 1989-05-06 | 2 | UCD | HJ, LJ |
| M. Concannon | f | 1983-05-06 | 1983-05-07 | 2 | UCD | HJ, SP |
| Mary Geraldine Condon | f | 1980-05-02 | 1983-03-12 | 7 | TCD | LJ, XC |
| Ailish Condron | f | 2005-02-05 | 2005-02-05 | 1 | UCD | XC |
| Niamh Condron | f | 2006-12-02 | 2007-04-14 | 3 | TCD | 1500mW, LJ |
| Eilish Conherty | f | 2003-02-15 | 2003-02-15 | 1 | UCD | XC |
| A. Conlon | f | 1986-03-08 | 1986-03-08 | 1 | UU | XC |
| Theresa Conlon | f | 2011-02-05 | 2013-04-13 | 13 | DCU | 8kgWfD, DT, HT, SP |
| M. Connelly | f | 1983-03-12 | 1983-03-12 | 1 | UCG | XC |
| Ailish Connery | f | 2006-02-18 | 2006-02-18 | 1 | UCD | XC |
| Eilis Connery | f | 2003-03-09 | 2006-03-04 | 11 | Guest, UCD | 1500m, 4x400m, 800m, Road, XC |
| Laura Connick | f | 2008-03-08 | 2008-03-08 | 1 | UCD | XC |
| K. Connolly | f | 1978-03-04 | 1978-03-04 | 1 | UCG | XC |
| M. Connolly | f | 1976-12-04 | 1976-12-04 | 1 | UCD | XC |
| Margaret Connolly | f | 1982-03-06 | 1982-03-06 | 1 | UCD | XC |
| Sarah Connolly | f | 2007-12-08 | 2009-02-15 | 2 | NUIG | 400m |
| Maeve Conroy | f | 1980-05-02 | 1983-05-07 | 6 | TCE | 100mH, 1500m, 3000m, 800m, XC |
| Maria Conroy | f | 2004-04-16 | 2004-04-17 | 4 | WIT | DT, HT, PV, SP |
| Siobhan A.B. Conroy | f | 1979-05-04 | 1980-05-14 | 7 | TCD | DT, JT, SP |
| Ciara Conway | f | 2001-12-07 | 2003-04-26 | 10 | UL | 100m, 100mH, 1500mW, 4x100m, 60m |
| Nora Marsali Cook | f | 1965-05-19 | 1966-05-18 | 2 | TCD | 100y, LJ |
| Amy Cooke | f | 2009-11-14 | 2010-11-13 | 2 | UCD | Road |
| Aoife Cooke | f | 2007-11-17 | 2008-04-19 | 3 | UCC | 5000m, Road, XC |
| Barbara Virginia Cooke | f | 1965-05-19 | 1966-05-18 | 3 | TCD | 100y, 4x110y |
| Gillian Cooke | f | 2001-06-19 | 2001-06-19 | 2 | SU | LJ, TJ |
| O. Cooke | f | 1986-03-08 | 1986-03-08 | 1 | NIHED | XC |
| Fiona Anne Cooley | f | 1990-03-03 | 1993-03-06 | 4 | TCD | 10000m, XC |
| E. Cooper | f | 1969-05-03 | 1969-05-03 | 2 | QUB | 100y, 4x110y |
| Emma Cooper | f | 1995-12-16 | 1999-04-24 | 12 | TCD | 1500m, HJ, Road, XC |
| Rionach Cooper | f | 2009-04-24 | 2010-04-24 | 3 | QUB | 100m, Road |
| Linda Coote | f | 1998-02-28 | 1998-02-28 | 1 | NUIG | XC |
| Paula Corbert | f | 1997-02-01 | 1997-02-01 | 1 | WIT | XC |
| Elaine Corbett | f | 2000-02-26 | 2000-12-02 | 3 | DCU | 1500m, 3000m, XC |
| Paula Corbett | f | 1998-04-24 | 1998-04-25 | 2 | WIT | 4x400m, 800m |
| Sharon Corbett | f | 2004-12-03 | 2008-04-19 | 8 | NUIG | DT, SP |
| E. Corcoran | f | 1968-03-02 | 1970-05-09 | 6 | UCG | 800m, Mile, SP, XC |
| Jennifer Corcoran | f | 2012-04-20 | 2013-02-01 | 3 | TCD | 200m, 4x100m, 4x200m |
| Margaret Cordial | f | 1994-04-22 | 1994-04-23 | 1 | UL | DT |
| I. Coriam | f | 1979-05-04 | 1979-05-05 | 1 | UCG | 400m |
| Caroline Corigan | f | 2010-04-07 | 2010-04-07 | 2 | TCD | 100m, 200m |
| Kathryn Corish | f | 2003-06-10 | 2004-06-08 | 3 | NI U23 | 100m, 200m |
| Sara Cormack | f | 2005-06-07 | 2005-06-07 | 1 | IUAA | PV |
| Sarah Cormack | f | 2004-02-06 | 2008-04-19 | 33 | IUAA, UL | 1500mW, 8kgWfD, DT, HJ, HT, JT, PV, SP |
| Bernadette Cecilia "Bernie" Cornyn | f | 1980-03-01 | 1981-03-07 | 3 | TCD | 1500m, XC |
| Aedin Corr | f | 2011-03-12 | 2011-03-12 | 1 | TCD | XC |
| B. Corr | f | 1970-03-14 | 1972-03-04 | 2 | UCG | XC |
| P. Corr | f | 1970-03-14 | 1970-03-14 | 1 | UCG | XC |
| Bridget Corrigan | f | 1985-05-03 | 1985-05-04 | 1 | TCE | HJ |
| Brigid Corrigan | f | 2005-04-22 | 2005-04-23 | 2 | DCU | HJ, SP |
| Brigid Corrigan | f | 1995-06-17 | 1995-06-17 | 1 | Dublin | HJ |
| Brigid Corrigan | f | 1983-05-06 | 1984-05-05 | 2 | TCE | HJ |
| Lisa Corrigan | f | 1996-02-09 | 1996-04-20 | 5 | TCD | 200m, 400m, 4x200m, TJ |
| T. Corrigan | f | 1975-03-08 | 1975-05-03 | 2 | NCPE | 1500m, XC |
| Therese Corrigan | f | 1981-03-07 | 1983-03-12 | 3 | SPM, TCE | XC |
| Una Cosgrove | f | 1988-04-29 | 1988-04-30 | 2 | UCC | DT, SP |
| G. Costello | f | 1995-06-17 | 1995-06-17 | 1 | Dublin | JT |
| Ann Marie Costelloe | f | 2002-11-16 | 2003-03-09 | 2 | UCC | Road, XC |
| I. Cotlam | f | 1979-03-17 | 1979-03-17 | 1 | UCG | XC |
| C. Cotter | f | 1983-03-12 | 1983-03-12 | 1 | Unknown | XC |
| D. Cotter | f | 1969-05-03 | 1970-03-14 | 3 | QUB | 440y, 880y, XC |
| Gillian Cotter | f | 1999-11-13 | 2000-02-26 | 2 | UCC | Road, XC |
| Imogen Cotter | f | 2011-11-12 | 2013-03-09 | 3 | UL | Road, XC |
| K. Cotter | f | 1988-04-29 | 1988-04-30 | 2 | TCE | 200m, LJ |
| Orla Coughlan | f | 2004-12-03 | 2004-12-04 | 2 | UL | 200m, 60m |
| Jane Coulter | f | 2003-06-10 | 2003-06-10 | 1 | NI U23 | TJ |
| Jayne Coulter | f | 2004-06-08 | 2004-06-08 | 1 | NI U23 | TJ |
| Ailbhe Courtney | f | 2012-02-04 | 2012-04-21 | 4 | UL | 400m, 400mH, 4x100m, 4x400m |
| B. Courtney | f | 1970-03-14 | 1970-03-14 | 1 | UCD | XC |
| Danielle Courtney | f | 2010-11-13 | 2011-03-12 | 2 | TCD | Road, XC |
| E. Courtney | f | 1976-03-06 | 1976-03-06 | 1 | UCD | XC |
| E. Courtney | f | 1975-05-02 | 1976-05-01 | 2 | NCPE | 400m |
| R. Courtney | f | 1970-05-09 | 1970-05-09 | 1 | UCD | 1500m |
| Nikki Cowzer | f | 2011-11-12 | 2012-02-04 | 2 | UCD | 400m, Road |
| Toni Cowzer | f | 2005-11-19 | 2006-02-18 | 2 | Guest, UCD | Road, XC |
| A. Cox | f | 1981-03-07 | 1981-03-07 | 1 | TCE | XC |
| E. Cox | f | 1981-03-07 | 1981-05-13 | 2 | UCD | HJ, XC |
| Fionnula Cox | f | 2010-03-13 | 2011-03-12 | 2 | TCD | XC |
| U. Cox | f | 1988-04-29 | 1988-04-30 | 2 | UCD | 1500mW, SP |
| L. Coyle | f | 1996-04-19 | 1996-04-20 | 1 | UL | 5000m |
| Lisa Coyle | f | 2006-11-18 | 2006-11-18 | 1 | QUB | Road |
| Mary Frances Coyle | f | 1999-12-03 | 1999-12-04 | 2 | IT Carlow | 800m |
| Natalya Coyle | f | 2009-11-14 | 2010-04-24 | 3 | TCD | 1500m, 4x400m, Road |
| Elizabeth Coyles | f | 2002-03-09 | 2005-02-26 | 4 | QUB | Road, XC |
| Gillian Coyne | f | 2000-02-26 | 2000-02-26 | 1 | DIT | XC |
| Jessica Craig | f | 2009-11-14 | 2013-04-13 | 14 | UU | 1500m, 3000m, 800m, Road, XC |
| L. Craig | f | 1980-03-01 | 1980-03-01 | 1 | QUB | XC |
| Hazel Craigie | f | 1992-03-07 | 1992-03-07 | 1 | NUIM | XC |
| A. Crawford | f | 1982-03-06 | 1982-03-06 | 1 | NUU | XC |
| Cathy Crawford | f | 2002-06-18 | 2002-06-18 | 1 | Guest | 100m |
| Cathy Crawford | f | 2002-06-18 | 2002-06-18 | 1 | NI U23 | 100mH |
| Stephanie Creaner | f | 2012-02-04 | 2013-04-13 | 15 | DCU | 100m, 200m, 4x100m, 4x200m, 60m |
| Amanda Creighton | f | 2004-02-06 | 2006-12-03 | 23 | UL | 100m, 4x100m, 4x200m, 60m, JT, LJ, TJ |
| Janice Creighton | f | 1994-04-22 | 1996-04-20 | 2 | UU | LJ |
| Niamh Cremin | f | 2002-12-06 | 2007-04-14 | 29 | IUAA, UCC, UL | 100mH, 200m, 400mH, 4x100m, 4x200m, 4x400m, 60mH, LJ |
| Lorraine Crene | f | 1999-03-06 | 1999-03-06 | 1 | UCD | XC |
| Aine Crimin | f | 2011-03-12 | 2011-03-12 | 1 | DIT | XC |
| Étain Mary Croasdell | f | 1979-03-17 | 1982-05-12 | 21 | TCD | 200m, 400m, 4x100m, 800m, XC |
| Ciara Cronin | f | 2011-11-12 | 2013-04-13 | 4 | UCC | 1500m, 800m, Road |
| Deidre Cronin | f | 2005-12-10 | 2005-12-11 | 1 | CIT | LJ |
| Lisa Cronin | f | 2001-11-07 | 2002-11-16 | 5 | UCC | 4x400m, 800m, Road, XC |
| Sinead Cronin | f | 2012-03-10 | 2013-02-01 | 2 | IT Blanchardstown | 1500m, XC |
| Siobhan Cronin | f | 2012-04-20 | 2012-04-21 | 1 | Guest | 1500m |
| Mary Cross | f | 1981-05-01 | 1982-05-01 | 4 | TCE | 100mH, 400mH, XC |
| Karen Crossan | f | 2007-11-17 | 2011-11-12 | 14 | DCU | 3000m, 5000m, Road, XC |
| Margaret Crosse | f | 1976-04-30 | 1979-05-05 | 16 | UCC | DT, HJ, JTo, SP |
| Amanda Crotty | f | 2012-04-20 | 2012-04-21 | 1 | Guest | 1500m |
| Laura Crowe | f | 2006-11-18 | 2013-02-01 | 29 | UCC | 200m, 4x100m, 4x200m, 4x400m, 800m, Road, XC |
| Caroline Crowley | f | 2010-11-13 | 2010-11-13 | 1 | TCD | Road |
| Clare Crowley | f | 2009-11-14 | 2010-04-24 | 3 | CIT | 4x100m, 4x400m, Road |
| Eimear Crowley | f | 2006-12-02 | 2007-04-14 | 7 | UCD | 200m, 4x100m, 4x200m, 60m |
| Helen Crowley | f | 1994-01-21 | 1994-01-21 | 2 | Cork RTC | HJ, LJ |
| Kate Crowley | f | 2012-11-17 | 2012-11-17 | 1 | CIT | Road |
| Lauren Crowley | f | 2009-11-14 | 2009-11-14 | 1 | UCC | Road |
| Margaret-Mary Crowley | f | 1999-11-13 | 2001-12-08 | 24 | UCC | 400m, 4x200m, 800m, Road, XC |
| Justina Cruikshanks | f | 1997-06-24 | 1997-06-24 | 1 | SU | TJ |
| Caitriona Cuddihy | f | 2005-12-10 | 2006-04-22 | 6 | UL | 400m, 400mH, 4x100m, 4x200m, 4x400m |
| Joanne Cuddihy | f | 2002-12-06 | 2006-04-22 | 18 | UCD | 100m, 200m, 400m, 4x100m, 4x200m, 4x400m, HJ, PV |
| S. Cuffey | f | 1983-05-06 | 1983-05-07 | 1 | UCC | 800m |
| Maeve Culhane | f | 2012-11-17 | 2012-11-17 | 1 | UL | Road |
| Caroline Cullen | f | 2001-11-07 | 2003-11-22 | 2 | DCU, UCD | Road |
| N Cullen | f | 1993-02-12 | 1993-02-12 | 1 | SPM | SP |
| Gail Culleton | f | 1992-03-07 | 1994-04-23 | 6 | UL | 10000m, 1500m, 3000m, XC |
| C. Cummins | f | 1983-03-12 | 1983-03-12 | 1 | SPM | XC |
| Muriel Cummins | f | 1997-12-12 | 2002-04-20 | 49 | IUAA, TCD | 100mH, 1500m, 200m, 400m, 400mH, 4x100m, 4x200m, 4x400m, 60mH, 800m, CE, HJ, LJ, PV, Road, SP, TJ, XC |
| Niamh Cummins | f | 2005-12-10 | 2006-04-22 | 6 | UCD | 400m, 4x100m, 4x200m, 4x400m |
| Niamh Cummins | f | 2000-04-14 | 2005-11-19 | 25 | Guest, IUAA, UCC | 100mH, 400mH, 4x100m, 4x200m, 60mH, CE, HJ, LJ, PV, Road, TJ |
| Niamh Cummins | f | 2005-04-22 | 2006-04-22 | 6 | WIT | 100mH, 400m, 4x100m, 4x400m, 60mH |
| Sinead Cummins | f | 1994-04-22 | 1995-03-04 | 2 | UL | 1500m, XC |
| Suzanne Cummins | f | 1996-02-09 | 1997-12-13 | 10 | UCC | 100m, 200m, 4x200m, 60m, 60mH |
| D. Cunane | f | 1989-05-05 | 1989-05-06 | 3 | UCC | 1500mW, 3000m, 800m |
| Jennifer Cunningham | f | 1993-04-23 | 1993-06-22 | 3 | IUAA, UL | 100m, 200m |
| Anne Curley | f | 1993-12-04 | 1994-04-23 | 3 | TCD | 3000m, XC |
| Anne Curley | f | 2000-02-26 | 2000-02-26 | 1 | DCU | XC |
| Maeve Curley | f | 2012-02-04 | 2013-04-13 | 5 | UL | 1500mW, Road |
| Pauline Curley | f | 2003-04-25 | 2004-02-07 | 3 | AIT | 1500m, 3000m |
| Fidelma Curran | f | 1992-03-07 | 1992-03-07 | 1 | UCC | XC |
| Jenny Curran | f | 2005-06-07 | 2006-04-22 | 13 | Guest, UU | 100mH, 60mH, CE, HJ, LJ, SP, TJ |
| Martha Curran | f | 1997-12-12 | 1999-03-06 | 5 | Dublin Colleges, UCD | 1500m, XC |
| Martia Curran | f | 1999-04-23 | 1999-04-24 | 1 | UCD | 5000m |
| Nuala Curran | f | 2001-06-19 | 2001-06-19 | 1 | NI U23 | LJ |
| Liz Currid | f | 1999-03-06 | 1999-03-06 | 1 | TCD | XC |
| Muireann Currid | f | 1999-11-13 | 1999-11-13 | 1 | NUIG | Road |
| Anne Marie Cusack | f | 1989-03-04 | 1991-03-02 | 4 | UCD | 1500m, XC |
| L. Cusdin | f | 1970-05-09 | 1970-05-09 | 3 | QUB | DT, JTo, SP |
| Theresa Cussen | f | 2002-11-16 | 2002-11-16 | 1 | UCC | Road |
| Maxine Czarnecka | f | 2009-03-28 | 2009-03-28 | 1 | Scotland | XC |