| - | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Athlete | Sex | First Appearance | Last Appearance | Appearances | Colleges | Race Types |
|---|---|---|---|---|---|---|
| Dinkar Sabnis | m | 1993-06-22 | 1993-06-22 | 3 | SU | HJ, LJ, TJ |
| Arran Sadlier | m | 2002-02-16 | 2002-11-16 | 2 | TCD | Road, XC |
| Jamil Saidi | m | 2015-04-10 | 2017-04-08 | 20 | TCD | 400m, 4x200m, 4x400m, CE, HJ, LJ, Road, SP, TJ |
| Jemil Saidi | m | 2019-04-05 | 2019-04-06 | 2 | TCD | 400m, 4x400m |
| Jemil Saidi | m | 2022-01-29 | 2022-04-09 | 6 | TCD | 400m, 4x200m, 4x400m |
| Raphael O Salaja | m | 2020-02-15 | 2022-04-09 | 4 | AIT | 4x100m, 4x200m, 60m |
| Michael Salami | m | 2023-03-04 | 2024-04-06 | 8 | MU | 1500m, 4x400m, 5000m, Mixed 4x400m, Road, XC |
| Joe Salmon | m | 1998-12-11 | 2002-06-18 | 21 | GST, IT Carlow, IUAA | 35lbWfD, DT, HT, JT, SP |
| Alan Salters | m | 1999-06-22 | 2000-06-20 | 3 | NI U23 | LJ, TJ |
| Giovanni Salvatore | m | 2024-03-09 | 2024-04-06 | 2 | TUD | 1500m, XC |
| Cathal Sammon | m | 2014-02-07 | 2014-02-07 | 1 | AIT | HJ |
| Joe Sammon | m | 1949-05-26 | 1949-05-26 | 1 | UCG | 880y |
| Samuel Samson | m | 2016-02-12 | 2016-02-12 | 1 | UG | 4x200m |
| Rob Samuel | m | 2007-03-31 | 2009-03-28 | 3 | Welsh Universities | XC |
| Luiz Sanchez Serrano | m | 2018-11-17 | 2019-04-06 | 4 | CIT | 10000m, 1500m, Road, XC |
| James Sanders | m | 2018-04-13 | 2019-02-08 | 3 | QUB | 35lbWfD, 4x200m |
| William A.F. Sandys | m | 1936-05-30 | 1939-05-27 | 12 | UCD, UCG | 100y, 220y, 440y |
| Yusuff Sanusi | m | 2012-02-04 | 2012-02-04 | 1 | DIT | LJ |
| Ernest E. Satchwell | m | 1924-05-31 | 1924-05-31 | 1 | TCD | SP |
| Alan Saulters | m | 2001-06-19 | 2005-06-07 | 7 | IUAA, NI U23, UU | LJ, TJ |
| John Saulters | m | 2003-11-22 | 2010-03-13 | 33 | IUAA, QUB | 100m, 200m, 35lbWfD, 400m, 4x100m, 4x200m, 4x400m, 800m, Road, XC |
| Dermot Saunders | m | 1993-12-04 | 1993-12-04 | 1 | TCD | XC |
| Jack Saunders | m | 2013-02-01 | 2016-04-16 | 25 | UCD | 100m, 200m, 400m, 4x100m, 4x200m, 4x400m, 60m, SP |
| Jack Saunders | m | 2023-01-28 | 2024-04-06 | 5 | UL | 2000mW, 400m, 4x400m, HT |
| Patrick Saunders | m | 2007-04-13 | 2007-04-14 | 1 | UCD | LJ |
| Adrian Saunderson | m | 2003-06-10 | 2003-06-10 | 1 | NI U23 | TJ |
| T. Saurin | m | 1931-05-30 | 1931-05-30 | 1 | UCD | 220y |
| J. Savage | m | 1913-05-24 | 1913-05-24 | 1 | QUB | LJ |
| J.S. Savage | m | 1913-05-24 | 1913-05-24 | 2 | QUB | 56lbWfD, SP |
| Jack Savage | m | 2017-11-18 | 2017-11-18 | 1 | TCD | Road |
| James Savage | m | 1995-03-04 | 1995-03-04 | 1 | GST | XC |
| Lee Savage | m | 2018-04-13 | 2018-04-14 | 1 | WIT | 5000m |
| R Savage | m | 1993-02-12 | 1993-02-12 | 1 | Cork RTC | SP |
| Carlo Savorgman | m | 2001-12-07 | 2002-04-20 | 3 | UCC | DT, JT, SP |
| Marco Savorgnan | m | 2010-02-13 | 2010-04-24 | 8 | UCC | 400mH, 4x100m, 4x200m, 60mH |
| Simon Sawhney | m | 1999-06-22 | 2002-06-18 | 7 | NI U23, SU | LJ, TJ |
| Ger Scallard | m | 2000-04-14 | 2000-04-15 | 4 | UCC | 35lbWfD, DT, JT, SP |
| Roderick Scanlan | m | 2000-12-01 | 2005-02-26 | 6 | UL | 1500m, 800m, Road, XC |
| Thomas Scanlan | m | 2003-04-25 | 2003-04-26 | 2 | UL | 1500m |
| David Scanlon | m | 2013-11-23 | 2018-02-09 | 16 | DCU, IUAA | 10000m, 2000mW, 3000m, 5000m, Road, XC |
| Greg Scanlon | m | 2001-12-07 | 2003-04-26 | 10 | TCD | 35lbWfD, 4x200m, CE, DT, HJ, SP |
| Joe Scanlon | m | 1966-02-19 | 1966-11-12 | 2 | UCG | XC |
| Joe J. Scanlon | m | 1967-05-05 | 1972-05-06 | 12 | IUAA, UCG | 1500m, 3 Miles, 5000m, 880y, Mile, XC |
| John Scanlon | m | 2006-11-18 | 2006-11-18 | 1 | UCD | Road |
| R. Scanlon | m | 1995-03-11 | 1995-03-11 | 1 | Loughborough | 1500m |
| Shane Scanlon | m | 1996-02-09 | 1997-04-26 | 3 | Carlow RTC, GST | DT, HT, SP |
| Thomas Scanlon | m | 2002-11-16 | 2004-02-28 | 4 | UL | 3000m, Road, XC |
| Tony Scanlon | m | 2007-11-17 | 2007-11-17 | 1 | UL | Road |
| A. Scannell | m | 1934-05-26 | 1934-05-26 | 1 | UCC | DT |
| Jamie Scannell | m | 2022-11-11 | 2023-11-10 | 2 | GST, MTU | Road |
| Tadgh Scannell | m | 1961-05-06 | 1961-05-06 | 1 | UCC | 120yH |
| Alessandro Schenini | m | 2016-05-28 | 2016-05-28 | 1 | GST | LJ |
| Stefan Schmid | m | 2006-11-18 | 2006-11-18 | 1 | QUB | Road |
| Josh Schnell | m | 2023-11-10 | 2024-04-06 | 2 | TUS | 1500m, Road |
| Richard Schoenmann | m | 2013-02-01 | 2013-02-01 | 2 | NUIM | 200m |
| G. Schroeder | m | 1971-05-22 | 1971-05-22 | 1 | Louvain | SP |
| Peter Schwartzstein | m | 2009-02-14 | 2009-02-15 | 1 | TCD | LJ |
| Tobias Schwedmann | m | 2000-02-05 | 2000-04-15 | 5 | Dublin Colleges, UCD | 10000m, 5000m, XC |
| Adam Scott | m | 2019-05-25 | 2019-05-25 | 1 | Scotland | 800m |
| Alan McNeil Scott | m | 1961-06-01 | 1965-06-23 | 11 | IUAA, TCD | 120yH, 440yH, 4x110y, HJ |
| Dennis Scott | m | 2012-07-18 | 2012-07-18 | 1 | North Down AC | 3000m |
| Fergus Scott | m | 2007-02-24 | 2008-03-08 | 2 | IT Sligo | XC |
| J. Scott | m | 1970-03-14 | 1970-03-14 | 1 | NUU | XC |
| J. Scott | m | 1969-05-03 | 1969-05-03 | 1 | QUB | TJ |
| J. Scott | m | 1980-03-01 | 1980-03-01 | 1 | NUU | XC |
| Matthew Scott | m | 2014-11-15 | 2015-03-07 | 2 | QUB | Road, XC |
| R. Scott | m | 1981-05-01 | 1983-05-07 | 3 | TCE | HJ |
| Sandie Scott | m | 1999-06-22 | 1999-06-22 | 1 | SU | 200m |
| Sandy Scott | m | 1999-06-22 | 2001-06-19 | 2 | SU | 100m, JT |
| Timothy Scott | m | 2012-07-18 | 2012-07-18 | 1 | Lagan Valley AC | 800m |
| Stephen Scullion | m | 2009-03-28 | 2009-03-28 | 1 | Northern Ireland | XC |
| Brian Scully | m | 2011-11-12 | 2011-11-12 | 1 | CIT | Road |
| Ciaran Scully | m | 1993-02-12 | 1993-02-12 | 2 | UL | 60mH, HJ |
| Daniel Scully | m | 2016-11-19 | 2017-04-08 | 5 | DCU | 1500m, 4x400m, Road, XC |
| Evan Scully | m | 2010-04-23 | 2010-04-24 | 1 | GST | 10000m |
| Kieran Scully | m | 1992-04-24 | 1992-04-25 | 3 | UL | 110mH, 400mH, HJ |
| Owen Scully | m | 2016-02-12 | 2016-04-16 | 6 | UG | 100m, 200m, 4x200m, 4x400m |
| Owen Scully | m | 2017-02-10 | 2017-04-08 | 5 | UG | 100m, 200m, 4x100m, 60m |
| Owen Scully | m | 2018-02-09 | 2020-02-15 | 15 | UG | 200m, 400m, 4x100m, 4x200m, 4x400m |
| Paul Scully | m | 2002-03-09 | 2002-03-09 | 1 | UU | XC |
| S. Scully | m | 1934-05-26 | 1934-05-26 | 1 | UCD | SP |
| Cotter Sean | m | 2021-11-13 | 2023-04-22 | 9 | UG | 3000m, 5000m, Road, XC |
| Kevin Seaward | m | 2002-06-18 | 2007-11-17 | 8 | NI U23, UU | 3000m, 5000m, Road, XC |
| Salim Sebaoui | m | 2012-04-11 | 2012-04-21 | 6 | TCD | 100m, 400m, 4x400m |
| Davide Secchi | m | 2023-11-10 | 2023-11-10 | 1 | UL | Road |
| Benoît Séguret | m | 1993-12-04 | 1994-04-23 | 3 | TCD | 5000m, XC |
| Bernard Sellars | m | 2000-11-12 | 2000-11-12 | 1 | TCD | Road |
| John Aloysius "Young Jack" Sellars | m | 1912-06-03 | 1912-06-03 | 2 | UCD | 880y, Mile |
| Joel Semple | m | 1999-06-22 | 2000-06-20 | 2 | GST | DT |
| Riley Senft | m | 2002-11-16 | 2004-11-20 | 5 | UCC | 4x200m, Road, XC |
| J.A. Sergerdal | m | 1921-06-04 | 1921-06-04 | 1 | QUB | Mile |
| Kevin Seward | m | 2001-06-19 | 2001-06-19 | 1 | NI U23 | 5000m |
| Brian Sexton | m | 2010-11-13 | 2012-11-17 | 2 | UG | Road |
| John Sexton | m | 1984-05-04 | 1984-05-05 | 2 | TCD | 100m, 4x100m |
| Kieron Sexton | m | 2011-11-12 | 2014-02-07 | 17 | TCD | 200m, 400m, 4x100m, 4x200m, 4x400m, 800m, Road, XC |
| Paul Sexton | m | 2016-02-12 | 2016-02-12 | 1 | GMIT | 60m |
| Paul Sexton | m | 2017-02-10 | 2019-05-25 | 13 | GMIT, Ireland | 110mH, 400mH, 4x100m, 4x200m, 4x400m, 60mH |
| Paul Sexton | m | 2019-02-08 | 2019-04-06 | 4 | GMIT | 400mH, 60mH |
| Roger Sexton | m | 1992-01-31 | 1992-01-31 | 2 | UU | 200m, 60m |
| Hesham Shaban | m | 2005-04-22 | 2005-04-23 | 3 | RCSI | JT, LJ, TJ |
| Navid Shafaee | m | 2002-04-19 | 2002-04-20 | 1 | RCSI | 5000m |
| G. Shakespeare | m | 1980-05-14 | 1980-05-14 | 1 | UCD | TJ |
| Ian Shakespeare | m | 2005-04-22 | 2005-04-23 | 1 | UCD | TJ |
| Denis Shanahan | m | 1994-01-21 | 1994-01-21 | 1 | GST | 3000m |
| F.F. Shanahan | m | 1920-06-05 | 1922-06-10 | 8 | UCC | 100y, 220y |
| John Shanahan | m | 2005-12-10 | 2010-02-13 | 9 | GST, IT Tralee | 4x200m, 60m, LJ |
| Ray Shanahan | m | 1981-03-07 | 1984-05-05 | 5 | UCC | 400m, 800m, XC |
| Thomas Shanahan | m | 2004-02-06 | 2005-04-23 | 4 | LIT | LJ |
| William "Willie" Shanahan | m | 1994-04-22 | 1994-04-23 | 3 | UL | 35lbWfD, HT, SP |
| B. Shane | m | 1957-05-18 | 1957-05-18 | 1 | UCD | LJ |
| James Shannon | m | 1975-05-02 | 1979-05-05 | 12 | QUB | 110mH, LJ, TJ |
| Michael Shannon | m | 2012-03-10 | 2012-03-10 | 1 | WIT | XC |
| Noel Shannon | m | 1978-06-30 | 1978-06-30 | 1 | President's Select | 1500m |
| Patrick Shannon | m | 1996-04-19 | 2000-06-20 | 26 | DIT, IUAA | 100m, 200m, 4x100m, 4x200m, 4x400m, 60m, LJ, TJ |
| Drew Sharkey | m | 1993-06-22 | 1993-06-22 | 1 | SU | 1500m |
| Eoin Sharkey | m | 2022-01-29 | 2023-11-28 | 20 | UL | 110mH, 35lbWfD, 400mH, 4x100m, 60m, CE, HJ, LJ, PV, Road, SP |
| Francis Sharkey | m | 1980-03-01 | 1983-05-07 | 3 | QUB | 10000m, 5000m, XC |
| Leo Sharkey | m | 1993-02-12 | 1995-06-17 | 3 | IUAA, UCG | DT, SP |
| Rohit Sharma | m | 2017-11-18 | 2017-11-18 | 1 | UG | Road |
| Alan Joseph Shatter | m | 1971-05-12 | 1971-05-12 | 1 | TCD | 440y |
| Ciaran Shaughnessy | m | 2010-03-13 | 2010-03-13 | 1 | UCC | XC |
| Andrew Shaw | m | 2022-01-29 | 2022-04-09 | 2 | UU | 800m |
| Andrew Shaw | m | 2023-11-10 | 2023-11-10 | 1 | UU | Road |
| Damien Shaw | m | 2004-11-20 | 2006-04-22 | 8 | DCU | 800m, DT, HT, Road, XC |
| Francis Shaw | m | 1990-03-03 | 1991-05-04 | 2 | UU | 10000m, XC |
| Frederick "Freddy" R.S. Shaw | m | 1912-06-03 | 1914-06-06 | 12 | TCD | 100y, 220y, 440y |
| George W.B. Shaw | m | 1913-05-24 | 1914-06-06 | 4 | TCD | 220y, LJ |
| Peter Shaw | m | 1972-06-11 | 1972-06-11 | 1 | English Unis | 800m |
| William Shaw | m | 2000-06-20 | 2003-06-10 | 5 | NI U23, QUB | 200m, LJ, TJ |
| Denis John Sheahan | m | 1981-05-13 | 1981-05-13 | 2 | TCD | LJ, TJ |
| Jeremy Sheahan | m | 1996-12-13 | 1996-12-14 | 3 | CIT | 60m, LJ, SP |
| Micheal Sheahan | m | 2019-02-08 | 2019-02-08 | 2 | IT Tralee | 35lbWfD, 400m |
| Darin Shearer | m | 1995-06-17 | 1995-06-20 | 2 | H & Y | 1500m, 3000mSC |
| Jim Shearman | m | 1982-12-04 | 1983-05-07 | 2 | TCD | 3000mSC, XC |
| Paul Sheedy | m | 1985-05-03 | 1987-05-09 | 2 | UCD | 200m, 400m |
| D. Sheehan | m | 1981-05-01 | 1981-05-02 | 1 | TCD | TJ |
| D.A. Sheehan | m | 1934-05-26 | 1938-05-26 | 9 | UCD | HJ, LJ |
| D.J. Sheehan | m | 1929-06-01 | 1931-05-30 | 4 | UCC, UCD | HJ, LJ |
| Danny Sheehan | m | 1998-02-28 | 1998-02-28 | 1 | UCC | XC |
| David Sheehan | m | 2018-04-13 | 2018-04-14 | 1 | WIT | 1500m |
| Eddie Sheehan | m | 1973-05-11 | 1973-05-12 | 3 | UCC | 110mH, LJ, TJ |
| Eugene Pius Paul Sheehan | m | 1976-03-06 | 1976-03-06 | 1 | TCD | XC |
| G. Sheehan | m | 1980-05-02 | 1980-05-03 | 1 | TCE | JTo |
| Jeremiah Sheehan | m | 2018-11-17 | 2020-03-07 | 2 | UL | Road, XC |
| Jeremy Sheehan | m | 1997-12-12 | 1998-02-28 | 2 | UCC | 60m, XC |
| Jim Sheehan | m | 1975-05-02 | 1977-05-07 | 4 | UCC | DT, SP |
| John Sheehan | m | 1977-05-06 | 1980-05-03 | 17 | IUAA, NCPE, TCE | 110mH, DT, HT, JTo, PV, SP |
| Luke Sheehan | m | 2015-04-10 | 2015-04-11 | 7 | CIT | 110mH, 4x100m, CE, HJ, LJ, SP |
| M.J. Sheehan | m | 1929-06-01 | 1929-06-01 | 1 | UCC | 440y |
| Michael Sheehan | m | 1993-02-12 | 1994-04-23 | 3 | UL | 200m, 400m |
| Niall Sheehan | m | 2003-11-22 | 2007-04-14 | 15 | President's Select, UL | 5000m, Road, XC |
| P. Sheehan | m | 1978-05-05 | 1980-05-03 | 6 | NCPE, TCE | 110mH, LJ, TJ |
| P. Sheehan | m | 1992-04-24 | 1992-04-25 | 2 | UCC | LJ, TJ |
| P. Sheehan | m | 1958-05-18 | 1963-05-19 | 6 | NACA | 120yH, 220y, 440y, 4x110y |
| Ronan Sheehan | m | 2013-11-23 | 2013-11-23 | 1 | UCC | Road |
| Con Sheehy | m | 2005-06-07 | 2005-06-07 | 1 | IUAA | HJ |
| Connor Sheehy | m | 2005-06-07 | 2005-06-07 | 1 | IUAA | TJ |
| Conor Sheehy | m | 2005-06-07 | 2005-06-07 | 1 | IUAA | LJ |
| Conor Sheehy | m | 2004-12-03 | 2007-04-14 | 4 | UCC | TJ |
| Diarmuid Sheehy | m | 1995-12-16 | 1995-12-16 | 1 | UCG | XC |
| Pte Jim Sheehy | m | 1964-05-31 | 1964-05-31 | 2 | Army | HJ, LJ |
| G. Sheenan | m | 1983-03-12 | 1983-03-12 | 1 | UCC | XC |
| Cillian Sheeran | m | 2023-11-10 | 2023-11-10 | 1 | DCU | Road |
| Gerry Sheeran | m | 1973-03-10 | 1976-05-11 | 4 | UCD | JT, JTo, XC |
| Rory Sheeran | m | 2017-03-04 | 2017-03-04 | 1 | IT Sligo | XC |
| S. Sheeran | m | 1975-05-21 | 1975-05-21 | 1 | UCD | JTo |
| Michael Sheerin | m | 2020-02-15 | 2022-01-29 | 4 | IT Carlow | 35lbWfD, SP |
| Hisham Sheikh Hassan | m | 2002-04-19 | 2002-04-20 | 1 | RCSI | 4x400m |
| Barry Sheil | m | 2000-02-26 | 2000-11-12 | 2 | DIT | Road, XC |
| Anthony Sheridan | m | 2006-12-02 | 2007-04-14 | 6 | WIT | 100m, 4x100m, 4x200m, 4x400m, 60m, LJ |
| B. Sheridan | m | 1975-03-08 | 1976-03-06 | 2 | SPM | XC |
| Dermot Sheridan | m | 2008-04-18 | 2008-04-19 | 1 | DCU | 35lbWfD |
| Eoin Sheridan | m | 2017-02-10 | 2019-04-06 | 10 | DCU, IUAA | DT, SP |
| Eoin Sheridan | m | 2022-04-08 | 2022-04-09 | 1 | RCSI | DT |
| Eoin Sheridan | m | 2023-04-21 | 2023-04-22 | 1 | RCSI | DT |
| Jamie Sheridan | m | 2019-11-16 | 2019-11-16 | 1 | MU | Road |
| Malacahy Sheridan | m | 1985-05-03 | 1986-05-03 | 4 | NIHED | DT, PV, SP |
| Malcahy Sheridan | m | 1987-05-08 | 1987-05-09 | 1 | NIHED | LJ |
| Michael Sheridan | m | 1983-03-12 | 1985-03-09 | 2 | QUB | XC |
| Nicholas A. Sheridan | m | 1913-05-24 | 1914-06-06 | 2 | UCD | SP |
| P. Sheridan | m | 1979-03-17 | 1979-03-17 | 1 | UCD | XC |
| Patrick Sheridan | m | 2012-07-18 | 2012-07-18 | 1 | Newcastle & District AC | 800m |
| R. Sheridan | m | 1988-03-05 | 1990-03-03 | 3 | QUB | XC |
| Ryan Sheridan | m | 2020-03-07 | 2020-03-07 | 1 | DCU | XC |
| K. Sherlock | m | 1986-03-08 | 1986-03-08 | 1 | TCD | XC |
| Niall Sherlock | m | 2003-03-09 | 2005-04-23 | 13 | NUIM, President's Select | 10000m, 1500m, 3000mSC, 4x400m, 5000m, Road, XC |
| Niall Sherlock | m | 2006-04-21 | 2007-11-17 | 7 | DCU | 4x100m, 800m, LJ, Road, XC |
| Joseph D. Sherman | m | 1982-03-06 | 1983-03-12 | 2 | TCD | XC |
| Frank Sherry | m | 2015-11-14 | 2015-11-14 | 1 | TCD | Road |
| Michael "Mick" Sherry | m | 1970-05-09 | 1970-05-13 | 6 | UCD | 110mH, 400mH, 4x100m |
| Ultan Sherry | m | 2013-02-01 | 2013-04-13 | 5 | NUIM | 100m, 1500m, 3000m, 60m |
| Francis Shevlin | m | 1992-03-07 | 1992-03-07 | 1 | UCG | XC |
| Barry Shields | m | 2001-04-07 | 2001-04-07 | 1 | DIT | XC |
| David Shields | m | 2002-06-18 | 2004-06-08 | 3 | NI U23 | HJ |
| E. Shiels | m | 1982-03-06 | 1983-03-12 | 2 | UCG | XC |
| Anthony D.G. Shillington | m | 1962-02-17 | 1965-06-23 | 21 | IUAA, TCD | 440y, 440yH, 880y, Mile, XC |
| Bertie Shillington | m | 1945-06-30 | 1945-06-30 | 2 | NIAAA Select | HJ, TJ |
| Colin J.G. Shillington | m | 1961-06-01 | 1961-06-01 | 3 | TCD | 440y, 880y, Mile |
| Koji Shimado | m | 2012-03-10 | 2012-03-10 | 1 | DCU | XC |
| Simon Shindler | m | 2017-11-18 | 2017-11-18 | 1 | UCD | Road |
| John Shine | m | 2006-12-02 | 2010-03-13 | 4 | DCU | 3000m, Road, XC |
| Kevin Shine | m | 2002-03-09 | 2002-04-20 | 2 | CIT | SP, XC |
| Pat Shine | m | 1977-06-14 | 1977-06-14 | 2 | BLE Select | LJ, TJ |
| Isaac Sholanke | m | 2019-04-05 | 2019-04-06 | 3 | DIT | 200m, 4x100m |
| David Shore | m | 2006-11-18 | 2008-04-19 | 3 | UCD | 3000mSC, 400mH, Road |
| Conor Short | m | 2014-11-15 | 2015-03-07 | 2 | TCD | Road, XC |
| D. Shortall | m | 1979-05-04 | 1981-05-02 | 3 | TCE | DT, HT |
| Aaron Shorten | m | 2023-04-21 | 2024-02-10 | 4 | GST | 1500m |
| D. Shorthall | m | 1981-05-01 | 1981-05-02 | 1 | TCE | HT |
| B. Shortt | m | 1951-05-26 | 1951-05-26 | 1 | UCD | LJ |
| John Shortt | m | 1982-12-04 | 1986-03-08 | 2 | TCD | XC |
| Francis Shovlin | m | 1991-05-03 | 1995-02-10 | 6 | IUAA, UCG | 2000mW, 3000mW |
| Chris Shulha | m | 2004-04-16 | 2004-04-17 | 1 | UL | 5000m |
| Laddy Shweeney | m | 2016-02-12 | 2016-04-16 | 5 | UG | 35lbWfD, HT, SP |
| Christopher Sibanda | m | 2015-02-06 | 2017-02-10 | 17 | LIT, UL | 100m, 200m, 4x100m, 4x200m, 60m, LJ, TJ |
| Christopher Sibanda | m | 2018-02-09 | 2019-02-08 | 14 | LIT | 100m, 200m, 4x100m, 4x200m, 60m |
| Robert E.G. Sides | m | 1939-07-01 | 1939-07-01 | 1 | IUAA | 880y |
| Antoine Sigalas | m | 2019-11-16 | 2019-11-16 | 1 | TCD | Road |
| A. Silcock | m | 1994-02-19 | 1994-02-19 | 1 | UU | XC |
| Alan Simms | m | 2000-12-01 | 2000-12-02 | 2 | UU | 800m |
| Ricky Simms | m | 1994-01-21 | 1997-04-26 | 10 | IUAA, UU | 1500m, 800m, XC |
| Samuel Simon | m | 2012-02-04 | 2012-04-21 | 5 | IT Tallaght | 400mH, HJ, LJ, TJ |
| Mateo Simonetto | m | 2023-03-04 | 2023-03-04 | 1 | MU | XC |
| Andrew Simpson | m | 1993-06-22 | 1997-06-24 | 2 | SU | HJ |
| Ben Simpson | m | 2003-06-10 | 2003-06-10 | 1 | NI U23 | HT |
| Brian Simpson | m | 2005-12-10 | 2005-12-11 | 2 | UU | 35lbWfD, SP |
| David Simpson | m | 2001-04-07 | 2002-11-16 | 4 | IT Tallaght | 5000m, Road, XC |
| David Simpson | m | 1994-06-28 | 1996-04-20 | 3 | NI U20, NI U23, UU | 5000m |
| J.W. Simpson | m | 1950-03-18 | 1950-03-18 | 1 | IUAA | XC |
| Reece Simpson | m | 2017-11-18 | 2018-04-14 | 4 | QUB | 4x400m, 800m, Road |
| James Sinclair-Ford | m | 2012-02-04 | 2015-02-06 | 27 | TCD | 100m, 200m, 35lbWfD, 4x100m, 4x200m, 4x400m, 60m |
| David Singleton | m | 2003-06-10 | 2003-06-10 | 1 | SU | HJ |
| Ciaran Sinnott | m | 2010-04-23 | 2010-04-24 | 4 | DIT | 4x100m, LJ, TJ |
| Dean Sinnott Mullins | m | 2019-04-05 | 2019-04-06 | 2 | IT Tralee | 4x100m, LJ |
| Jamie Skelly | m | 2012-11-17 | 2016-04-16 | 14 | CIT | 10000m, 3000m, 3000mSC, 3000mW, 800m, Road, XC |
| Joe Skelly | m | 1991-03-02 | 1994-02-19 | 4 | UCD | XC |
| Stephen Skelly | m | 2001-12-07 | 2001-12-08 | 4 | QUB | 200m, 60mH, HJ, LJ |
| Thomas Skelly | m | 2006-03-04 | 2006-03-04 | 1 | DCU | XC |
| Neil Skelton | m | 2004-11-20 | 2004-11-20 | 1 | TCD | Road |
| Jeremy Skillington | m | 1989-03-04 | 1990-04-28 | 2 | Cork RTC | 400mH, XC |
| Keelin Skillington | m | 2022-01-29 | 2023-03-04 | 5 | CIT, MTU | 1500m, XC |
| Keelin Skillington | m | 2022-11-11 | 2024-03-09 | 6 | GST, MTU | 3000mW, 800m, Road, XC |
| K. Skipton | m | 1965-05-08 | 1965-05-08 | 1 | TCD | JTo |
| Craig Skvoretz | m | 2018-03-10 | 2018-04-14 | 2 | UCC | 5000m, XC |
| Brian Slater | m | 2018-03-10 | 2018-03-10 | 1 | TCD | XC |
| Alan Slattery | m | 2013-04-12 | 2013-04-13 | 1 | WIT | 1500m |
| B. Slattery | m | 1968-05-01 | 1968-05-11 | 2 | UCD | 440y, 880y |
| Brian Slattery | m | 2011-11-12 | 2012-04-11 | 4 | UCD | 1000m, 800m, Road, XC |
| Bryan Slattery | m | 2019-03-02 | 2019-03-02 | 1 | AIT | XC |
| Bryan Slattery | m | 2019-11-16 | 2019-11-16 | 1 | AIT | Road |
| Kieran Slevin | m | 1993-02-12 | 1993-02-12 | 2 | GST, UCD | LJ, TJ |
| Ray Smedley | m | 1977-06-14 | 1977-06-14 | 1 | England | 3000m |
| J.F. Smellie | m | 1933-05-27 | 1933-05-27 | 1 | QUB | 120yH |
| F. Smierga | m | 1950-05-17 | 1950-05-17 | 1 | UCC | DT |
| ?. Smith | m | 1974-05-03 | 1974-05-04 | 1 | UCD | 3000mSC |
| Aaron Smith | m | 2024-03-09 | 2024-03-09 | 1 | UCC | XC |
| Adam Smith | m | 1994-06-28 | 1995-06-20 | 4 | NI U20, NI U23 | HJ, TJ |
| Bobby Smith | m | 2016-04-15 | 2016-05-28 | 2 | IUAA, UCC | JT |
| Bren Smith | m | 2003-11-22 | 2003-11-22 | 1 | DIT | Road |
| Cecil Smith | m | 1959-05-13 | 1961-06-01 | 5 | IUAA, UCD | 880y, Mile |
| Ciaran Smith | m | 2002-04-19 | 2002-04-20 | 3 | TCD | HJ, LJ, TJ |
| Colin Smith | m | 2018-11-17 | 2023-04-22 | 17 | DCU | 1500m, 4x1000m, 800m, Road, XC |
| Colin Smith | m | 2023-11-10 | 2024-04-06 | 4 | DCU | 1500m, 4x400m, Road |
| Cormac Smith | m | 1983-05-06 | 1985-05-04 | 3 | UCD | JTo |
| D. Smith | m | 1977-03-12 | 1977-03-12 | 1 | SPM | XC |
| Dermot Smith | m | 1998-12-11 | 2004-06-08 | 35 | GST, TCD, UL | 100m, 200m, 35lbWfD, 4x100m, 4x200m, 60m |
| Frederick P.E. Smith | m | 1933-05-27 | 1934-05-26 | 2 | TCD | SP |
| George A. Smith | m | 1938-07-06 | 1938-07-06 | 1 | Atalanta | 880y |
| J. Smith | m | 1924-05-31 | 1924-05-31 | 1 | UCD | 440y |
| J. Smith | m | 1995-03-11 | 1995-03-11 | 2 | Loughborough | 200m, 60m |
| J.F. Smith | m | 1929-07-03 | 1929-07-03 | 3 | Atalanta | 100y, 220y, 880y, 220yx2, 440y |
| James Smith | m | 2018-02-09 | 2018-02-09 | 1 | MU | LJ |
| Joe Smith | m | 1993-02-12 | 1993-02-12 | 2 | DCU | LJ, TJ |
| Keith Smith | m | 2013-02-01 | 2015-04-11 | 19 | IUAA, WIT | 100m, 200m, 4x100m, 60m, JT, LJ |
| Killian Smith | m | 1997-12-12 | 1999-12-04 | 9 | UCD | 35lbWfD, DT, HT, SP |
| L. Smith | m | 1978-05-05 | 1978-05-06 | 1 | QUB | 110mH |
| M. Smith | m | 1936-05-30 | 1936-05-30 | 1 | UCD | 120yH |
| M. Smith | m | 1970-03-14 | 1970-03-14 | 1 | QUB | XC |
| Mark Smith | m | 2004-12-03 | 2004-12-04 | 2 | IT Tallaght | 1500m, LJ |
| Mark Smith | m | 1993-04-23 | 1993-04-24 | 2 | Cork RTC | 100m, 200m |
| Michael "Mike" Smith | m | 1968-05-01 | 1971-02-20 | 14 | TCD | 400m, 440y, 800m, XC |
| N. Smith | m | 1993-06-22 | 1993-06-22 | 1 | NI U20 | TJ |
| R. Smith | m | 1977-05-06 | 1977-05-07 | 1 | QUB | 10000m |
| Ralph H.T. Smith | m | 1914-06-06 | 1914-06-06 | 2 | TCD | 120yH |
| Ronan Smith | m | 2019-02-08 | 2019-11-16 | 3 | IT Sligo | 3000m, Road |
| Simon Smith | m | 2017-11-18 | 2017-11-18 | 1 | TCD | Road |
| Simon Smith | m | 2000-06-20 | 2001-06-19 | 4 | GST, SU | DT, JT, SP |
| Stephen Donald Smith | m | 1975-05-21 | 1979-05-23 | 26 | TCD | 110mH, HJ, HT, JT, JTo, PV, TJ |
| Sullivan Smith | m | 1998-03-14 | 1998-03-14 | 1 | Welsh Universities | XC |
| William "Leslie" W. Smith | m | 1914-06-06 | 1914-06-06 | 3 | TCD | DT, HJ, SP |
| William L.W. Smith | m | 1920-06-05 | 1923-06-02 | 7 | TCD | DT, HJ, LJ, SP |
| Fergal Smithwick | m | 2008-11-15 | 2012-04-21 | 14 | UL | 2000mW, 3000mSC, 3000mW, Road, XC |
| Harold S. Smithwick | m | 1926-06-05 | 1928-06-02 | 4 | IUAA, TCD | SP |
| Bryan Smyth | m | 1968-11-30 | 1969-11-29 | 2 | UCD | XC |
| Ciaran Smyth | m | 2011-11-12 | 2011-11-12 | 1 | TCD | Road |
| Eoin Smyth | m | 2022-03-05 | 2022-03-05 | 1 | UCD | XC |
| G. Smyth | m | 1975-05-02 | 1975-05-03 | 1 | QUB | 400m |
| Hugh Alexander Smyth | m | 1966-05-18 | 1970-05-13 | 10 | TCD | HJ, PV |
| James Smyth | m | 2016-02-12 | 2017-03-04 | 4 | UU | 3000m, XC |
| James Smyth | m | 2017-11-18 | 2018-04-14 | 6 | UU | 1500m, 3000m, 4x400m, Road |
| James Smyth | m | 2019-02-08 | 2019-02-08 | 4 | UU | 1500m, 3000m |
| Jason Smyth | m | 2005-06-07 | 2005-06-07 | 1 | NI U23 | 100m |
| Killian Smyth | m | 1996-12-13 | 1996-12-14 | 1 | UCD | SP |
| Mark Smyth | m | 2020-02-15 | 2024-02-10 | 23 | DCU | 100m, 200m, 4x100m, 4x200m, 60m |
| Neil Smyth | m | 1996-02-09 | 1998-04-25 | 10 | TCD | 100m, 200m, 4x100m, 4x200m, 60m |
| M.G. Smythe | m | 1937-05-22 | 1937-05-22 | 2 | UCD | 120yH |
| Martin Somerville Snaith | m | 1966-05-07 | 1969-05-15 | 8 | TCD | 120yH, 4x110y |
| Damien Snape | m | 2003-11-22 | 2003-11-22 | 1 | UU | Road |
| Philip Snoddy | m | 1986-05-02 | 1989-05-06 | 10 | QUB | 100m, 200m, 400m, 4x100m |
| Adrian John Snow | m | 1962-05-23 | 1963-05-22 | 7 | TCD | 4x100y, 4x110y, DT, JTo, LJ, TJ |
| Adrian J.L. Snÿman | m | 1920-06-05 | 1920-06-05 | 4 | TCD | 120yH, DT, SP |
| Emmanuel Sobayo | m | 2011-02-05 | 2014-04-12 | 32 | IUAA, UG | 100m, 110mH, 4x100m, 4x200m, 4x400m, 60m, 60mH, CE, HJ, LJ, SP |
| Faruok Sobayo | m | 2018-02-09 | 2018-02-09 | 1 | UCC | 60m |
| Gerard Sodden | m | 2004-06-08 | 2004-06-08 | 1 | IUAA | HJ |
| Peter Soden | m | 1973-03-10 | 1973-03-10 | 1 | UCD | XC |
| Dudley Francis Solan | m | 1980-05-14 | 1980-05-14 | 1 | TCD | TJ |
| Gerard Solden | m | 2004-02-06 | 2004-04-17 | 5 | UCD | HJ, LJ, TJ |
| Eugeni Valenti Soler | m | 2021-11-13 | 2021-11-13 | 1 | DCU | Road |
| David Sommerville | m | 2009-02-14 | 2010-11-13 | 3 | UL | 12, 4, 8, 16, 800m, Road |
| Ayanleh Souleiman | m | 2012-07-18 | 2012-07-18 | 1 | Djibouti | 800m |
| Ayanteh Soulieman | m | 2012-07-18 | 2012-07-18 | 1 | Djibouti | 3000m |
| Conor Southby | m | 2022-04-08 | 2022-04-09 | 2 | GMIT | 35lbWfD, SP |
| A.N. Spain | m | 1922-06-10 | 1923-06-02 | 3 | UCD | 880y, Mile |
| D. Spalding | m | 1977-06-14 | 1977-06-14 | 1 | SU | 800m |
| Dr Arthur Percy Spark | m | 1927-06-28 | 1927-06-28 | 2 | Atalanta | DT, SP |
| Anthony Ralph Sparshott | m | 1961-06-01 | 1963-05-22 | 8 | TCD | 3 Miles, Mile, XC |
| Jamie Specht | m | 2007-04-13 | 2007-04-14 | 4 | UL | DT, HT, JT, SP |
| Andrew Speer | m | 1999-11-13 | 1999-11-13 | 1 | UG | Road |
| Chris Speers | m | 2002-03-09 | 2003-11-22 | 4 | UU | Road, XC |
| Aaron Speight | m | 2023-11-10 | 2024-04-06 | 7 | TUS | 2000mW, 3000m, 5000m, Road, XC |
| James Speight | m | 2012-07-18 | 2012-07-18 | 1 | Finn Valley Ac | 1500m |
| John Spelman | m | 2022-11-11 | 2024-04-06 | 8 | UCC | 2000mW, 3000mSC, 400m, 4x400m, Road, XC |
| Chima Spencer | m | 2002-04-19 | 2002-04-20 | 3 | RCSI | 100m, 200m, 4x100m |
| Oisin Spillane | m | 2021-09-26 | 2024-04-06 | 18 | UL | 1500m, 3000m, 3000mSC, 800m, Road, XC |
| Daniel E.J. "Donal" Spring | m | 1978-05-17 | 1980-05-14 | 3 | TCD | JT, JTo |
| Shane Spring | m | 2022-11-11 | 2024-04-06 | 5 | TCD | 10000m, 5000m, Road, XC |
| Greg Stacey | m | 2003-06-10 | 2003-06-10 | 1 | GST | 200m |
| Greg Stacey | m | 2003-06-10 | 2003-06-10 | 1 | SU | HT |
| John Stacey | m | 1999-04-23 | 2003-04-26 | 37 | IUAA, UL | 100m, 200m, 35lbWfD, 400mH, 4x100m, 4x200m, 4x400m, HT, LJ, PV, Road, SP, TJ |
| J. Stack | m | 1977-03-12 | 1977-03-12 | 1 | SPM | XC |
| Paul Stack | m | 2010-04-23 | 2013-04-13 | 10 | CIT | 100m, 200m, 4x100m, 4x400m |
| B. Stafford | m | 1982-03-06 | 1982-03-06 | 1 | UCG | XC |
| Jonas Stafford | m | 2023-11-10 | 2024-02-10 | 3 | UCD | 3000m, Road |
| P. Stafford | m | 1958-05-18 | 1958-05-18 | 1 | NACA | 880y |
| Peter Stafford | m | 2005-06-07 | 2005-06-07 | 1 | L U23 | 100m |
| Tony Stafford | m | 2014-02-07 | 2017-04-08 | 25 | WIT | 100m, 200m, 4x100m, 4x200m, 60m, LJ |
| A. Stanley | m | 1960-05-15 | 1960-05-15 | 1 | NACA | PV |
| Adrian Stanley | m | 2006-12-02 | 2008-04-19 | 4 | UL | 100m, 200m, 4x200m |
| John Stapleton | m | 1983-05-06 | 1986-05-03 | 3 | UCD | TJ |
| David Staunton | m | 2018-11-17 | 2019-04-06 | 3 | MU | 1500m, Road, XC |
| Eoin Staunton | m | 2022-01-29 | 2022-04-09 | 5 | GMIT | 4x100m, 4x400m, 60m, 800m, SP |
| Eoin Staunton | m | 2023-11-10 | 2024-03-09 | 4 | ATU | 2000mW, 800m, Road, XC |
| Gerry Staunton | m | 1970-03-14 | 1979-03-17 | 18 | UCG | 10000m, 3000mSC, 5000m, XC |
| Robin Steacy | m | 2003-03-09 | 2003-03-09 | 1 | IT Tralee | XC |
| Ciaran Steed | m | 1995-12-16 | 1998-02-28 | 3 | Waterford RTC, WIT | XC |
| Johnathan Steele | m | 2002-03-09 | 2002-06-18 | 3 | NI U23, QUB | 3000mSC, 5000m, XC |
| Eric Steensland | m | 2004-04-16 | 2004-04-17 | 4 | RCSI | 200m, 400m, 4x100m, LJ |
| Edward "Richard" Steenson | m | 1970-05-13 | 1970-05-13 | 1 | TCD | PV |
| Sean Stefancin | m | 2011-02-05 | 2011-02-05 | 2 | UCD | 1500m, 800m |
| Christof Steiner | m | 2022-04-08 | 2023-04-22 | 9 | UCD | 35lbWfD, DT, HT, JT, SP |
| Francois Stephan | m | 2015-03-07 | 2015-03-07 | 1 | AIT | XC |
| G.V. Stephenson | m | 1923-06-02 | 1923-06-02 | 3 | QUB | 100y, 220y |
| Norman Stephenson | m | 1994-01-21 | 1998-12-12 | 17 | GST, IUAA, UL | 4x200m, 800m, HJ, LJ, TJ |
| Duncan Sterling | m | 1993-12-04 | 1993-12-04 | 1 | TCD | XC |
| Jesse Stern | m | 1995-06-17 | 1995-06-20 | 2 | H & Y | PV |
| C.E.E. Stevens | m | 1926-06-05 | 1929-06-01 | 8 | QUB | 100y, 220y, HJ |
| Daniel Stevens | m | 2007-03-31 | 2007-03-31 | 1 | Welsh Universities | XC |
| A. Stevenson | m | 1969-07-12 | 1969-07-12 | 1 | Edinburgh | 120yH |
| F. Stevenson | m | 1996-04-19 | 1996-04-20 | 2 | UCD | 10000m, 5000m |
| Gary Stevenson | m | 1998-06-23 | 2000-06-20 | 4 | SU | 200m, 400m, 400mH |
| H. Stevenson | m | 1969-07-12 | 1969-07-12 | 1 | Edinburgh | HJ |
| J. Stevenson | m | 1969-07-12 | 1969-07-12 | 1 | Edinburgh | 440yH |
| J.J. Stevenson | m | 1938-07-06 | 1938-07-06 | 1 | Atalanta | HJ |
| D. Stewart | m | 1971-05-07 | 1971-05-08 | 1 | QUB | HT |
| D. Stewart | m | 1989-05-05 | 1989-05-06 | 3 | QUB | 1500m, HJ, LJ |
| F. Stewart | m | 1963-05-19 | 1963-05-19 | 1 | NACA | HJ |
| Grant Stewart | m | 2000-03-11 | 2000-03-11 | 1 | SU | XC |
| John Stewart | m | 1969-05-03 | 1972-05-06 | 9 | QUB | DT, SP |
| Michael Stewart | m | 1988-03-05 | 1989-05-06 | 4 | UU | 800m, XC |
| Nathan Stewart | m | 2022-01-29 | 2022-01-29 | 3 | UU | 4x200m, 60m |
| Nathan Stewart | m | 2023-01-28 | 2023-01-28 | 3 | UU | 200m, 60m |
| Thomas MacD. Stewart | m | 1928-06-02 | 1929-06-01 | 2 | TCD | SP |
| Aaron Stirling | m | 2007-04-13 | 2007-04-14 | 2 | TCD | 35lbWfD, HT |
| Nick Stirrett | m | 2007-11-17 | 2007-11-17 | 1 | QUB | Road |
| Michael William Stitt | m | 1970-03-14 | 1975-03-08 | 13 | QUB, TCD | 10000m, 110mH, 220y, 4x110y, 5000m, HJ, XC |
| Matthew Stockton | m | 2012-07-18 | 2012-07-18 | 1 | North Down AC | JT |
| D. Stokes | m | 1986-03-08 | 1986-03-08 | 1 | NIHED | XC |
| Dr. Patrick J. Stokes | m | 1914-06-06 | 1921-06-04 | 6 | UCD | 120yH, HJ |
| Jordan Stokes | m | 2012-07-18 | 2012-07-18 | 1 | North Down AC | 1500m |
| Daniel Stone | m | 2021-09-26 | 2024-04-06 | 12 | DCU | 10000m, 3000m, 5000m, Road, XC |
| Adam Stops | m | 2008-04-18 | 2009-02-15 | 2 | UG | 3000m, 800m |
| Aubrey Storey | m | 1998-01-31 | 2006-03-04 | 51 | IUAA, TCD | 10000m, 110mH, 1500m, 3000m, 3000mSC, 400m, 4x200m, 5000m, 60mH, 800m, CE, HJ, LJ, PV, Road, SP, TJ, XC |
| B. Storey | m | 1973-05-11 | 1973-05-12 | 2 | QUB | JTo, SP |
| R. Storey | m | 1972-05-05 | 1975-05-03 | 2 | QUB | JTo |
| Kieron Stout | m | 2016-02-12 | 2016-02-12 | 2 | MU | 35lbWfD, SP |
| Michael Strain | m | 1999-06-22 | 1999-06-22 | 2 | SU | 100m, 400mH |
| Sean Stratton | m | 2023-11-28 | 2023-11-28 | 1 | DCU | 60m |
| Sean Stratton | m | 2024-02-10 | 2024-04-06 | 4 | DCU | 200m, 4x100m |
| James Strawbridge | m | 2009-03-07 | 2010-04-24 | 3 | QUB | 800m, XC |
| Sven Streubel | m | 1997-11-22 | 1998-04-25 | 6 | TCD | 800m, HJ, Road, XC |
| Adam Strevens | m | 2001-11-07 | 2002-03-09 | 2 | TCD | Road, XC |
| Dakota Strode | m | 2017-11-18 | 2017-11-18 | 1 | TCD | Road |
| David Strong | m | 2001-12-07 | 2001-12-08 | 1 | UCD | 4x200m |
| Eoin Strutt | m | 2015-11-14 | 2018-04-14 | 8 | DCU | 1500m, 5000m, 800m, Road, XC |
| Ian M. Stuart | m | 1921-06-04 | 1925-06-06 | 6 | TCD, UCC | 3 Miles, 440y, 880y, DT, Mile |
| John Simon Stubbings | m | 1967-05-05 | 1968-05-01 | 3 | TCD | SP |
| Josh Stubbs | m | 2015-11-14 | 2015-11-14 | 1 | UL | Road |
| Frederick Sturesson | m | 1996-02-17 | 1996-02-17 | 1 | UCD | XC |
| A. Sullivan | m | 1925-06-06 | 1925-06-06 | 1 | UCC | Mile |
| D. Sullivan | m | 1920-06-05 | 1920-06-05 | 1 | UCD | DT |
| Eoin Sullivan | m | 2002-11-16 | 2002-11-16 | 1 | DIT | Road |
| J. Sullivan | m | 1925-06-06 | 1925-06-06 | 1 | UCC | 880y |
| Jerome Ivo Sullivan | m | 1912-06-03 | 1912-06-03 | 1 | UCC | 880y |
| Keith Sullivan | m | 1992-04-24 | 1994-04-23 | 3 | TCD | JT, PV |
| O. Sullivan | m | 1986-03-08 | 1986-03-08 | 1 | UCG | XC |
| Phillip Sullivan | m | 1914-06-06 | 1914-06-06 | 2 | UCD | 220y, 440y |
| Aizuddin Sultan | m | 2017-02-10 | 2018-04-14 | 10 | UCD | 100m, 200m, 4x100m, 4x200m, 60m, LJ |
| Christopher Summers | m | 2007-04-13 | 2009-04-25 | 7 | UU | 35lbWfD, DT, HT, JT, SP |
| Nikhil Sunny | m | 2016-11-19 | 2018-04-14 | 6 | ITB | 100m, 200m, 4x100m, JT, Road |
| James Surgenor | m | 2005-11-19 | 2009-02-15 | 8 | QUB | 800m, Road |
| Roland Surlis | m | 2017-02-10 | 2022-01-29 | 16 | Ireland, IUAA, UG | 4x400m, 800m, Road |
| D.H. Sutherland | m | 1938-07-06 | 1939-07-01 | 4 | Atalanta | 100y, 220y, 440y, 220yx2, 440y |
| R. Sutherland | m | 1993-06-22 | 1993-06-22 | 1 | SU | 1500m |
| A. Sutitan | m | 1995-03-11 | 1995-03-11 | 1 | SU | 60mH |
| Diarmuid Sutton | m | 2001-11-07 | 2002-03-09 | 2 | GST, UL | Road, XC |
| Thomas "David" Sutton | m | 1973-05-16 | 1973-05-16 | 2 | TCD | 100m, 4x100m |
| Brian Swaby | m | 1997-12-12 | 2001-12-08 | 19 | UL | 1500m, 3000m, 3000mSC, 800m, Road, XC |
| Gerard M. Swallowe | m | 1975-03-08 | 1975-03-08 | 1 | TCD | XC |
| Ray Swan | m | 1994-04-22 | 1997-04-26 | 10 | GST, IUAA, Waterford RTC, WIT | HJ |
| Glodi Swana | m | 2018-04-13 | 2019-04-06 | 3 | LIT | 200m, 4x100m |
| Michael Swann | m | 2000-06-20 | 2005-06-07 | 4 | NI U23 | HT |
| P. Swann | m | 1993-06-22 | 1993-06-22 | 1 | GST | 1500m |
| Conor Sweeney | m | 2004-11-20 | 2004-11-20 | 1 | TCD | Road |
| Dave Sweeney | m | 1995-06-17 | 1995-06-17 | 1 | Dublin | DT |
| David Sweeney | m | 2022-04-08 | 2022-04-09 | 1 | DCU | DT |
| Eamonn Sweeney | m | 2017-11-18 | 2019-03-02 | 3 | TCD | Road, XC |
| Eamonn Sweeney | m | 2007-11-17 | 2011-04-30 | 11 | QUB | 4x400m, 5000m, 800m, Road, XC |
| Frank Sweeney | m | 1978-05-05 | 1981-05-13 | 20 | IUAA, UCD | HJ, JT, JTo, PV, TJ |
| J. Sweeney | m | 1963-05-19 | 1963-05-19 | 1 | NACA | DT |
| J.H. Sweeney | m | 1923-06-02 | 1925-06-06 | 2 | QUB | 880y |
| Joe Sweeney | m | 2003-11-22 | 2008-04-19 | 12 | DCU, UCD | 10000m, 5000m, Road, XC |
| Joe Sweeney | m | 2011-11-12 | 2014-11-15 | 4 | UCD | Road |
| Joseph Sweeney | m | 2007-04-13 | 2007-04-14 | 1 | UCD | 10000m |
| Kevin Sweeney | m | 2011-11-12 | 2011-11-12 | 1 | NUIM | Road |
| Leon Sweeney | m | 2023-01-28 | 2024-04-06 | 6 | DCU | LJ, TJ |
| Mark Sweeney | m | 1985-05-03 | 1989-05-06 | 12 | RCSI | DT, HT, JT, SP |
| Morris Sweeney | m | 1939-05-27 | 1939-05-27 | 1 | UCG | 440y |
| N. Sweeney | m | 1962-05-17 | 1962-05-17 | 1 | UCD | 120yH |
| Paddy Sweeney | m | 2018-02-09 | 2018-02-09 | 1 | UCD | 35lbWfD |
| Pádraig Sweeney | m | 1981-03-07 | 1982-12-04 | 3 | UCD | XC |
| Peter Sweeney | m | 1994-02-19 | 1995-03-04 | 2 | UL | XC |
| Thomas A. Sweeney | m | 1913-05-24 | 1914-06-06 | 4 | UCD | 440y, 880y, Mile |
| T. Sweeny | m | 1972-03-04 | 1972-03-04 | 1 | UCG | XC |
| Paul Sweet | m | 1999-04-23 | 1999-04-24 | 4 | QUB | 100m, 200m, 4x100m |
| Luke Sweetman | m | 2006-12-02 | 2007-04-14 | 5 | DCU | 35lbWfD, 4x100m, LJ, SP |
| Kevin Swords | m | 1950-05-17 | 1950-05-17 | 1 | UCG | Mile |
| Adam Sykes | m | 2022-01-29 | 2023-04-22 | 9 | QUB | 100m, 200m, 4x200m, 60m |
| Joseph Symonds | m | 2003-03-22 | 2003-03-22 | 1 | SU | XC |
| Eoin Synnott | m | 2013-02-01 | 2014-02-07 | 4 | UL | 60mH |
| Maja Sabatowska | f | 2013-04-12 | 2013-04-13 | 1 | IT Carlow | 400m |
| Una Samuels | f | 2017-04-07 | 2017-05-27 | 2 | IUAA, UL | PV |
| Una Samuels | f | 2018-02-09 | 2023-04-22 | 8 | UCC | PV |
| Maria Sanchez | f | 2021-11-13 | 2021-11-13 | 1 | DCU | Road |
| Michelle Sands | f | 2005-12-10 | 2006-03-04 | 3 | UG | 800m, XC |
| Tiarna Sands | f | 2017-11-18 | 2017-11-18 | 1 | UCD | Road |
| Olga Sandys | f | 1969-05-03 | 1971-05-22 | 8 | IUAA, UCG | 100m, 220y, 4x100m, HJ, LJ |
| Sukurat Sandra Temitope Sanusi | f | 2022-04-08 | 2023-04-22 | 5 | MU | 100m, 400m, 4x100m, 60m |
| Laura Saulters | f | 2015-05-31 | 2015-05-31 | 1 | GST | TJ |
| F. Saunders | f | 1992-04-24 | 1992-04-25 | 1 | UCD | JTo |
| Helen Saunders | f | 1994-02-19 | 1994-02-19 | 1 | GST | XC |
| A. Savage | f | 1972-03-04 | 1972-03-04 | 1 | UCG | XC |
| G. Savage | f | 1983-05-06 | 1983-05-07 | 1 | NUU | 100m |
| Gemma Savage | f | 2008-11-15 | 2008-11-15 | 1 | QUB | Road |
| Niamh Savage | f | 1997-12-12 | 1997-12-13 | 1 | Limerick RTC | 200m |
| Nikita Savage | f | 2009-04-24 | 2014-02-07 | 8 | DCU, GST | JT, PV |
| Jenny Sawyer | f | 2023-01-28 | 2024-04-06 | 16 | UL | 200m, 300m, 400mH, 4x200m, 4x400m, 60m, DT |
| Susan Scallan | f | 2012-07-18 | 2012-07-18 | 1 | Raheny Shamrocks AC | 400m |
| Elaine Scally | f | 2006-11-18 | 2007-02-24 | 2 | UG | Road, XC |
| Lily Scanlan | f | 2024-02-10 | 2024-04-06 | 7 | TCD | 100m, 1500mW, 400m, 4x100m, 60m, LJ, XC |
| Ciara Scanlon | f | 2013-04-12 | 2013-04-13 | 1 | UCC | HT |
| G. Scanlon | f | 1974-05-03 | 1974-05-04 | 2 | NCPE | 200mH, 800m |
| Karen Scanlon | f | 1998-02-28 | 1998-02-28 | 1 | UL | XC |
| M. Scanlon | f | 1978-03-04 | 1978-03-04 | 1 | UCG | XC |
| Mary Scanlon | f | 2022-01-29 | 2024-02-10 | 4 | DKIT | 200m, 20lbWfD, SP |
| Mary Scanlon | f | 2023-01-28 | 2023-04-22 | 5 | DKIT | 100m, 200m, JT, SP |
| Susan Scanlon | f | 2010-04-23 | 2010-04-24 | 3 | DIT | 400m, 4x400m |
| Zoe Scanlon | f | 2012-04-20 | 2014-04-12 | 12 | WIT | 20lbWfD, DT, JT, SP |
| Kirby Schell | f | 2004-12-03 | 2004-12-04 | 1 | UL | 20lbWfD |
| Elizabeth Schimdt | f | 2003-11-22 | 2004-02-28 | 2 | UCC | Road, XC |
| Claudia Schopper | f | 2003-11-22 | 2003-11-22 | 1 | TCD | Road |
| Leonie Schottler | f | 2017-04-07 | 2017-04-08 | 2 | ITB | 100m, 200m |
| Cristín Scollard | f | 2022-03-05 | 2023-11-10 | 4 | TUD | 5000m, Road, XC |
| Caroline Scott | f | 2010-04-23 | 2010-04-24 | 1 | TCD | 5000m |
| Cathy Scott | f | 1985-05-03 | 1987-05-09 | 8 | QUB | 100mH, 4x100m, HJ, LJ |
| Jane Scott | f | 2000-06-20 | 2001-06-19 | 7 | SU | 100mH, 400mH, HJ, LJ, TJ |
| Jessica Scott | f | 2012-07-18 | 2012-07-18 | 1 | Willowfield Harriers | 800m |
| Lorna Scott | f | 1994-06-28 | 1999-06-22 | 2 | SU | 400m, 800m |
| Molly Scott | f | 2018-02-09 | 2022-01-29 | 12 | IT Carlow | 100mH, 60m, 60mH |
| Isla Scott-Perce | f | 2017-05-27 | 2017-05-27 | 1 | SUCA | 3000mSC |
| Laura Scriven | f | 2007-11-17 | 2009-11-14 | 13 | DCU | 4x200m, 4x400m, 800m, Road, XC |
| L. Scullion | f | 1979-03-17 | 1981-03-07 | 3 | QUB | XC |
| Fiona Scully | f | 1995-06-17 | 1995-06-17 | 1 | Dublin | 400m |
| Olivia Scully | f | 1994-01-21 | 1997-04-26 | 10 | IUAA, UCD, UL | CE, HJ |
| Eve Sealy | f | 2016-05-28 | 2016-05-28 | 1 | SUCA | 3000mSC |
| Anna-Lena Seele | f | 2004-12-03 | 2005-04-23 | 9 | TCD | 100m, 200m, 4x100m, 60m, HJ, XC |
| Sarah Semeraro | f | 2010-04-23 | 2010-04-24 | 2 | UU | 4x100m, PV |
| Eve Semple | f | 2016-05-28 | 2016-05-28 | 2 | SUCA | 400m, 4x400m |
| Kylie Seward | f | 2021-09-26 | 2022-03-05 | 3 | TCD | Road, XC |
| Geraldine Sexton | f | 1989-03-04 | 1990-03-03 | 4 | Cork RTC, GST | 800m, XC |
| V. Seymour | f | 1969-05-03 | 1969-05-03 | 1 | TCD | HJ |
| Rukayat Shabowale | f | 2015-11-14 | 2017-04-08 | 8 | AIT | 3000m, 400m, 800m, Road, XC |
| Dara Angela Shakespeare | f | 1984-05-04 | 1990-04-28 | 9 | TCD | DT, JTo, SP |
| Carol Shanahan | f | 1997-12-12 | 1997-12-13 | 1 | UCC | 4x200m |
| Louise Shanahan | f | 2016-04-15 | 2020-03-07 | 17 | IUAA, UCC | 4x200m, 4x400m, 800m, Road, XC |
| Michelle Shanahan | f | 2012-02-04 | 2013-04-13 | 9 | WIT | 200m, 20lbWfD, 4x100m, 60m, DT, JT |
| Jill Shannon | f | 1998-06-23 | 2004-02-28 | 5 | GST, NI U23, SU | 1500m, 3000m, XC |
| V. Shannon | f | 1976-04-30 | 1976-05-01 | 1 | NCPE | 100mH |
| Alison Sharkey | f | 2006-12-02 | 2007-04-14 | 7 | UCD | 4x100m, 4x200m, CE, HJ, LJ, SP |
| Lorraine Sharkey | f | 1987-05-08 | 1989-05-06 | 7 | TCE | 800m, Road, XC |
| Fiona Sharp | f | 2001-11-07 | 2001-11-07 | 1 | TCD | Road |
| L. Sharp | f | 1994-06-28 | 1994-06-28 | 1 | GST | DT |
| C. Sharpe | f | 1993-06-22 | 1993-06-22 | 1 | GST | 800m |
| Laura Shaughnessy | f | 2009-11-14 | 2016-03-05 | 16 | UCD | 3000m, 5000m, Mile, Road, XC |
| M. Shaunessy | f | 1989-03-04 | 1989-03-04 | 1 | UU | XC |
| F. Shaw | f | 1989-05-05 | 1990-04-28 | 4 | UU | DT, JT, SP |
| Mary Margaret Sheahan | f | 1971-02-20 | 1971-02-20 | 1 | TCD | XC |
| Anna Sheehan | f | 2015-04-10 | 2015-04-11 | 1 | UCD | 4x400m |
| Chelsea Sheehan | f | 2013-04-12 | 2013-04-13 | 3 | CIT | 100m, 4x100m, 4x400m |
| Diane Sheehan | f | 1994-01-21 | 1996-04-20 | 13 | IUAA, UCC | DT, HT, JT, JTo, SP |
| Dyan Sheehan | f | 1996-02-09 | 1996-02-10 | 1 | UCC | SP |
| Jessica Sheehan | f | 2014-02-07 | 2016-04-16 | 13 | IUAA, UL | 100m, 4x100m, LJ, TJ |
| Laura Sheehan | f | 2008-11-15 | 2010-04-24 | 4 | UCC | 4x100m, HJ, Road, SP |
| Maria Sheehan | f | 2000-12-01 | 2009-04-25 | 80 | IUAA, UL | 100m, 12, 4, 8, 16, 200m, 20lbWfD, 400m, 400mH, 4x100m, 4x200m, 4x400m, 60m, 800m, HJ, SP |
| Maria Sheehan | f | 2008-04-18 | 2008-04-19 | 1 | UU | 4x100m |
| Mona Sheehan | f | 1985-05-03 | 1985-05-04 | 1 | TCE | 800m |
| Paula Sheehan | f | 2002-11-16 | 2002-11-16 | 1 | UCC | Road |
| Anna Sheehy | f | 2023-11-10 | 2024-03-09 | 2 | UG | Road, XC |
| Aoife Sheehy | f | 2020-02-15 | 2024-04-06 | 22 | UL | 20lbWfD, 400m, 400mH, 4x400m, 60mH, CE, HJ, JT, LJ, Mixed 4x400m, SP, TJ |
| Ciara Sheehy | f | 2022-01-29 | 2022-04-09 | 5 | UL | 20lbWfD, DT, SP |
| Ciara Sheehy | f | 2023-01-28 | 2024-04-06 | 12 | DCU | 20lbWfD, DT, JT, SP |
| Laura Sheehy | f | 2016-11-19 | 2016-11-19 | 1 | UCC | Road |
| Sarah Sheehy | f | 2018-04-13 | 2019-04-06 | 9 | UL | 20lbWfD, DT, JT, LJ, SP |
| Blaithin Sheil | f | 2013-11-23 | 2014-11-15 | 3 | TCD | Road, XC |
| Blathin Sheil | f | 2016-04-15 | 2018-04-14 | 4 | TCD | 1500m, 3000m, Road, XC |
| Isabella Sheldon | f | 2018-05-26 | 2018-05-26 | 1 | Scotland | 3000m |
| Mia Shepherd | f | 2016-05-28 | 2016-05-28 | 1 | SUCA | HT |
| Suzanne Sheppard | f | 1995-06-20 | 1995-06-20 | 1 | NI U23 | 100mH |
| Callie Sher | f | 2014-02-22 | 2014-02-22 | 1 | UCD | XC |
| Lia Sheridan | f | 1989-05-05 | 1989-05-06 | 1 | TCE | 1500mW |
| Caroline Shesgreen | f | 2005-11-19 | 2005-11-19 | 1 | UCD | Road |
| Rebecca Shiel | f | 2000-12-01 | 2001-04-21 | 9 | QUB | 200m, 60mH, HJ, LJ, SP, TJ |
| Mary Shields | f | 2005-04-22 | 2005-04-23 | 1 | RCSI | 1500mW |
| Emily Shiels | f | 2017-02-10 | 2017-04-08 | 7 | UCD | 4x100m, 4x200m, 4x400m, 800m |
| Lisa Shiels | f | 2012-02-04 | 2014-02-07 | 4 | LYIT | 200m, 60m |
| Angela Shine | f | 1992-03-07 | 1995-12-16 | 22 | IUAA, UCC | 10000m, 1500m, 3000m, 5000m, 800m, Road, XC |
| Karen Shinkins | f | 1995-04-21 | 1999-04-24 | 31 | GST, IUAA, UL, Waterford RTC, WIT | 100m, 200m, 400m, 4x100m, 4x200m, 4x400m, 60m |
| Annamaria Shinnick | f | 2001-12-07 | 2001-12-08 | 1 | IT Tralee | 1500m |
| M. Shire | f | 1988-04-29 | 1988-04-30 | 2 | SPM | 100m, 200m |
| Simone Shirlow | f | 1993-06-22 | 1996-06-25 | 4 | GST, NI U20, NI U23 | DT, HT |
| Ciara Shlabdorf | f | 1999-03-06 | 1999-03-06 | 1 | UCC | XC |
| Rukayat Shobowale | f | 2018-02-09 | 2018-04-14 | 4 | AIT | 200m, 400m, 4x200m |
| Jessica Shodipo | f | 2023-04-21 | 2023-04-22 | 1 | MU | DT |
| Valerie Shortland | f | 1971-05-07 | 1974-05-04 | 15 | IUAA, UCC, UCG | 100m, 200m, 4x100m, HJ, LJ, XC |
| Tracy Shorts | f | 1993-06-22 | 1995-06-20 | 9 | SU | DT, HT, JTo, SP |
| Jane Shovlin | f | 2016-02-12 | 2017-04-08 | 7 | MU | 100m, 60m, LJ |
| Sarah Shovlin | f | 2012-02-04 | 2015-02-06 | 22 | WIT | 100mH, 4x100m, 4x400m, 60mH, CE, HJ, LJ, SP |
| R, Shuttenworth | f | 1995-03-11 | 1995-03-11 | 1 | Birmingham | HJ |
| R. Shuttleworth | f | 1995-03-11 | 1995-03-11 | 1 | Birmingham | SP |
| Joanne Siccama | f | 2012-11-17 | 2012-11-17 | 1 | UCC | Road |
| Ciara Silby | f | 2019-11-16 | 2019-11-16 | 1 | UCD | Road |
| L. Silver | f | 1995-03-11 | 1995-03-11 | 1 | SU | 60mH |
| Lorna Silver | f | 1993-06-22 | 1996-06-25 | 4 | SU | 100mH, 400mH |
| Louise Silver | f | 1997-06-24 | 1997-06-24 | 1 | SU | 100m |
| Anna Simkovics | f | 2019-11-16 | 2019-11-16 | 1 | MU | Road |
| Jennifer Simms | f | 2003-11-22 | 2006-04-22 | 7 | UU | 1500mW, 5000m, Road, XC |
| Dianne Simone | f | 2014-02-07 | 2014-02-07 | 3 | UG | 400m, 4x200m |
| Alžběta Šimotová | f | 2024-04-05 | 2024-04-06 | 1 | UL | JT |
| Annabel Simpson | f | 2014-05-31 | 2014-05-31 | 1 | SAL Select | 3000m |
| Chloe Simpson | f | 2019-05-25 | 2019-05-25 | 1 | Scotland | 1500m |
| Nicola Simpson | f | 2009-02-14 | 2010-04-24 | 4 | QUB | 800m, XC |
| Rachel Sinclair | f | 2013-11-23 | 2013-11-23 | 1 | UCC | Road |
| Margaret Sinnott | f | 2007-11-17 | 2007-12-09 | 3 | QUB | 1500m, 800m, Road |
| Maria Skelton | f | 1995-06-20 | 2001-06-19 | 5 | NI U23 | 1500m, 3000m |
| Megan Skinnader | f | 2022-03-05 | 2022-03-05 | 1 | UCD | XC |
| Fiona Slattery | f | 2007-11-17 | 2007-11-17 | 1 | UCD | Road |
| M. Slattery | f | 1991-05-03 | 1991-05-04 | 1 | TCE | 1500mW |
| Maria Slattery | f | 2003-02-15 | 2011-04-30 | 38 | GST, IUAA, UCD | 1500m, 3000m, 4x100m, 4x200m, 4x400m, 800m, Road, XC |
| Theresa Slattery | f | 2011-03-12 | 2012-11-17 | 9 | GST, RCSI | 200m, 400m, Road, XC |
| Weronika Slawinska | f | 2017-04-07 | 2017-04-08 | 2 | QUB | 100m, LJ |
| Avril Evelyn Sloan | f | 1979-05-23 | 1979-05-23 | 1 | TCD | LJ |
| S. Small | f | 1979-03-17 | 1979-03-17 | 1 | UCG | XC |
| Hannah Smile | f | 2019-04-05 | 2019-04-06 | 1 | UG | 3000mSC |
| A. Smillie | f | 1980-03-01 | 1980-03-01 | 1 | QUB | XC |
| Aisling Smith | f | 1990-03-03 | 1991-05-04 | 6 | TCD | 1500m, 3000m, 800m, XC |
| Alissa Smith | f | 2007-04-13 | 2007-04-14 | 1 | UL | 5000m |
| Amanda Smith | f | 2006-12-02 | 2006-12-03 | 1 | UL | 800m |
| Angela Smith | f | 2000-06-20 | 2001-06-19 | 4 | SU | 200m, 400m, JT |
| Anna Smith | f | 2018-11-17 | 2018-11-17 | 1 | UCD | Road |
| Arlene Smith | f | 1992-01-31 | 1992-04-25 | 4 | UCD | 400m, 800m, XC |
| Debbie Smith | f | 2002-03-09 | 2002-03-09 | 1 | UU | XC |
| Debbie Smith | f | 1999-04-23 | 1999-04-24 | 1 | UU | 800m |
| Eimear Smith | f | 1992-03-07 | 2000-11-12 | 28 | GST, IUAA, TCD, UCD | 1500m, 3000m, 5000m, Road, XC |
| Elaine Smith | f | 1998-02-28 | 1998-02-28 | 1 | GST | XC |
| M. Smith | f | 1981-05-01 | 1982-05-01 | 3 | NUU | 200m, 400m |
| Rachel Smith | f | 2015-11-14 | 2017-11-18 | 2 | QUB | Road |
| Rosie Smith | f | 2008-03-28 | 2008-03-28 | 1 | SU | XC |
| Delia Smyth | f | 2015-11-14 | 2015-11-14 | 1 | TCD | Road |
| Hilary Jennifer Smyth | f | 1978-05-05 | 1979-05-23 | 3 | TCD | 100m, 4x100m |
| Hilary Jennifer Smyth | f | 1979-05-23 | 1979-05-23 | 1 | TCD | 100m |
| Rachael Smyth | f | 2013-02-01 | 2016-04-16 | 9 | MU, NUIM | 1500m, 3000m, 5000m, XC |
| Rachael Smyth | f | 2016-11-19 | 2018-11-17 | 5 | DCU | 1500m, 3000m, Road |
| Rachel Smyth | f | 2021-09-26 | 2022-03-05 | 3 | TCD | Road, XC |
| Roisin M. Smyth | f | 1983-03-12 | 1986-05-03 | 11 | UCD | 1500m, 800m, XC |
| Susan Smyth | f | 2009-11-14 | 2013-04-13 | 5 | UU | 1500m, 3000m, Road |
| Esther Sneddon | f | 1993-06-22 | 1995-06-20 | 7 | SU | 100m, HJ, JTo, SP |
| Maria Snell | f | 2007-02-24 | 2009-03-07 | 3 | TCD | XC |
| Carla Solange | f | 2015-02-06 | 2016-04-16 | 14 | AIT | 4x100m, 4x200m, 4x400m, 60m, LJ, Road, TJ |
| Christiane Sommer | f | 2012-11-17 | 2012-11-17 | 1 | TCD | Road |
| Lea Sommer | f | 2019-11-16 | 2019-11-16 | 1 | MU | Road |
| Carolyn Somorowsky | f | 2013-11-23 | 2014-04-12 | 5 | AIT | 1500m, 4x400m, 5000m, Road, XC |
| Prendiville Sorcha | f | 2012-02-04 | 2012-02-04 | 1 | TCD | 1500mW |
| R. Speers | f | 1995-03-11 | 1995-03-11 | 1 | Loughborough | 3000m |
| Angela Speight | f | 2008-03-28 | 2008-03-28 | 1 | Welsh Universities | XC |
| Kelly Ann Speight | f | 2004-06-08 | 2005-06-07 | 2 | NI U23 | 800m |
| Bernadette Spillane | f | 2023-11-28 | 2023-11-28 | 1 | GST | 60m |
| Niamh Spratt | f | 1995-04-21 | 1996-04-20 | 5 | UL | DT, HT, JT, SP |
| Aisling Stack | f | 2014-04-11 | 2014-04-12 | 1 | UCC | HT |
| Mary Stack | f | 1978-03-04 | 1978-03-04 | 1 | UCG | XC |
| Annie Stafford | f | 2016-04-15 | 2017-04-08 | 3 | DCU | LJ |
| Charlotte Stammers | f | 2022-04-08 | 2023-01-28 | 4 | UCD | 200m, 400m, 4x400m |
| Non Stanford | f | 2009-03-28 | 2009-03-28 | 1 | Wales | XC |
| Kirstine Stangeland | f | 2002-04-19 | 2002-04-20 | 4 | TCD | 4x100m, HJ, JT, LJ |
| Cheryl Stanley | f | 2010-11-13 | 2012-03-10 | 7 | WIT | 3000m, 800m, Road, XC |
| Cheyrl Stanley | f | 2009-02-14 | 2010-04-24 | 3 | WIT | 200m |
| Mary Stapleton | f | 1998-12-11 | 2002-04-20 | 39 | TCD | 100m, 100mH, 1500mW, 200m, 400m, 4x100m, 4x200m, 60m, 60mH, LJ, PV, Road, XC |
| Breege Staunton | f | 1995-12-16 | 1999-03-06 | 3 | CIT, Cork RTC | 800m, XC |
| Carol Staunton | f | 2001-12-07 | 2003-04-26 | 10 | UL | 1500mW, 200m, 4x200m, 60m, 800m |
| Niamh Staunton | f | 2018-03-10 | 2018-03-10 | 1 | UCD | XC |
| Niamh Staunton | f | 2020-03-07 | 2022-03-05 | 2 | UCD | XC |
| Sarah Staunton | f | 2020-02-15 | 2020-02-15 | 1 | UG | 3000m |
| D. Steele | f | 1967-05-05 | 1969-05-03 | 10 | QUB | 100mH, 220y, 440y, 4x110y, 80mH, 880y, LJ, Mile |
| Tina Steiger | f | 2021-11-13 | 2021-11-13 | 1 | QUB | Road |
| D. Stelfox | f | 1977-03-12 | 1977-03-12 | 1 | QUB | XC |
| Kate Stephens | f | 1997-12-12 | 1997-12-13 | 2 | TCD | HJ, LJ |
| Tamsin Stephens | f | 1996-06-25 | 1999-06-22 | 6 | NI U23 | 100mH, 200m |
| Emily Stephenson | f | 1995-03-04 | 1996-02-17 | 3 | UCD | XC |
| S. Stephenson | f | 1991-05-03 | 1991-05-04 | 1 | TCE | JTo |
| Joy Stevens | f | 1994-06-28 | 1996-04-20 | 2 | NI U20, QUB | 3000m, 800m |
| D. Stewart | f | 1969-05-03 | 1969-05-03 | 1 | TCD | 880y |
| Joanne Stewart | f | 1988-04-29 | 1991-03-02 | 7 | UU | 1500mW, 400m, HJ, XC |
| Kelsey Stewart | f | 2014-05-31 | 2014-05-31 | 1 | SAL Select | 400m |
| Margaret Stewart | f | 1978-03-04 | 1978-03-04 | 1 | TCD | XC |
| Patricia Stewart | f | 2000-06-20 | 2000-06-20 | 1 | NI U23 | HT |
| Lauren Stoddart | f | 2013-06-01 | 2013-06-01 | 1 | GST | 4x400m |
| Lauren Stoddart | f | 2013-06-01 | 2014-05-31 | 5 | SU, SUCA | 3000m, 3000mSC, 400mH |
| Emma Katherine Stokes | f | 1988-04-29 | 1989-05-06 | 3 | TCD | 100m, 200m |
| Jessica Strain | f | 2019-02-08 | 2022-04-09 | 13 | CIT | 100m, 200m, 4x100m, 4x200m, 60m, Road |
| Jessica Strain | f | 2023-01-28 | 2023-04-22 | 3 | GST, MTU | 4x100m, 4x400m, 60m |
| Natalie Strain | f | 2000-06-20 | 2001-06-19 | 2 | NI U23 | 400m, 400mH |
| Julia Straker | f | 2003-06-10 | 2003-06-10 | 1 | SU | 100m |
| Julie Straker | f | 2003-06-10 | 2003-06-10 | 1 | SU | TJ |
| Lauren Strange | f | 2012-07-18 | 2012-07-18 | 1 | Ballymena & Antrim AC | 100m |
| Greta Streimikye | f | 2019-04-05 | 2022-01-29 | 2 | GST | 1500m, 3000m |
| Greta Streimikyte | f | 2014-11-15 | 2019-03-02 | 11 | DCU, GST | 1500m, Road, XC |
| Tanya Strevens | f | 1999-03-06 | 2003-03-09 | 26 | IUAA, TCD | 1500m, 3000m, 4x400m, 5000m, Road, XC |
| Rose Styephens | f | 1991-03-02 | 1991-03-02 | 1 | UU | XC |
| Claire Sullivan | f | 2012-03-10 | 2012-03-10 | 1 | UL | XC |
| Clare Sullivan | f | 2004-02-28 | 2004-11-20 | 2 | UCD | Road, XC |
| Fiona Sullivan | f | 1990-03-03 | 1991-03-02 | 2 | UCC | XC |
| Shilpa Sundar | f | 2017-04-07 | 2017-05-27 | 2 | IUAA, UL | LJ |
| Mary Sutherland | f | 2009-02-14 | 2011-04-30 | 15 | DCU | 20lbWfD, DT, HT, SP |
| Colleen Sutton | f | 1996-12-13 | 1996-12-14 | 1 | DIT | 3000m |
| Ellie-Mai Sutton | f | 2017-11-18 | 2019-11-16 | 4 | UG | Road, XC |
| Anke Suykerbuyk | f | 2014-11-15 | 2014-11-15 | 1 | UCC | Road |
| Sinead Swan | f | 2000-12-01 | 2004-04-17 | 17 | GST, IT Carlow, WIT | 200m, 60m, CE, HJ, LJ, SP |
| Carla Sweeney | f | 2016-11-19 | 2018-04-14 | 5 | UCD | 1500m, 4x400m, Road |
| Carla Sweeney | f | 2019-04-05 | 2019-04-06 | 1 | UCD | 1500m |
| Christine Sweeney | f | 2004-11-20 | 2005-04-23 | 5 | TCD | 3000m, 5000m, Road, XC |
| Leonie Sweeney | f | 1973-03-10 | 1973-05-12 | 4 | UCC | 1500m, 800m, JTo, XC |
| Margaret Sweeney | f | 1991-03-02 | 1992-04-25 | 3 | UCD | 1500m, XC |
| Robin Sweeney | f | 2022-04-08 | 2022-04-09 | 1 | TUD | 200m |
| Robin Sweeney | f | 2024-04-05 | 2024-04-06 | 3 | TUD | 100m, 4x100m |
| S. Sweeney | f | 1972-05-05 | 1972-05-06 | 1 | UCC | JTo |
| Sinead Sweeney | f | 2016-11-19 | 2017-03-04 | 2 | QUB | Road, XC |
| Sinead Sweeney | f | 2018-04-13 | 2018-04-14 | 1 | QUB | 5000m |
| Siobhan Sweeney | f | 2000-11-12 | 2000-11-12 | 1 | TCD | Road |
| Agata Szopa | f | 2024-02-10 | 2024-04-06 | 7 | TUS | 100mH, CE, HJ, LJ, PV, SP |
| Julia Sztejner | f | 2023-03-04 | 2024-03-09 | 4 | UL | 800m, Road, XC |