| - | 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 |
|---|---|---|---|---|---|---|
| A. Taaffe | m | 1967-05-06 | 1967-05-06 | 2 | UCD | 440y, 880y |
| Brendan Taffe | m | 1996-12-13 | 1998-04-25 | 12 | UCD | 4x200m, 4x400m, 800m, HJ, JT, LJ, PV, TJ |
| T. Taffee | m | 1964-05-09 | 1964-05-09 | 1 | UCD | 880y |
| Simon Taggart | m | 2005-11-19 | 2010-04-24 | 33 | TCD | 200m, 3000mW, 400m, 4x100m, 4x200m, 4x400m, 60m, HJ, JT, Road, SP |
| Miika Takala | m | 2002-11-16 | 2002-11-16 | 1 | QUB | Road |
| Majestic Tam | m | 2004-04-16 | 2004-04-17 | 2 | RCSI | DT, SP |
| Fergal Tansey | m | 2002-04-19 | 2006-04-22 | 14 | Guest, UCD | 2000mW, 3000mW, 5000m, XC |
| Fergal Tansey | m | 1989-05-05 | 1989-05-06 | 1 | UCD | 3000mW |
| Paul Tanson | m | 1999-06-22 | 1999-06-22 | 1 | SU | 1500m |
| James Taykor | m | 2004-11-20 | 2004-11-20 | 1 | TCD | Road |
| James Taylor | m | 2003-11-22 | 2005-11-19 | 2 | TCD | Road |
| Simon Taylor | m | 2002-03-09 | 2006-04-22 | 24 | IUAA, NI U23, QUB | 10000m, 1500m, 3000m, 3000mW, 4x400m, 5000m, Road, XC |
| Stephan Teeling-Lynch | m | 2007-02-24 | 2007-02-24 | 1 | IT Sligo | XC |
| Patrick Temple | m | 2005-02-05 | 2006-04-22 | 8 | TCD | 3000m, 3000mSC, Road, XC |
| Geoff Theisson | m | 2001-06-19 | 2001-06-19 | 2 | Guest, SU | LJ, TJ |
| Damien Thillaye Du Boullay | m | 2004-11-20 | 2006-04-22 | 8 | IUAA, QUB | 1500m, 800m, Road, XC |
| Howard Thom | m | 2004-01-24 | 2004-01-24 | 1 | TCD | XC |
| Jorge Thomas | m | 2009-03-28 | 2009-03-28 | 1 | Wales | XC |
| Laurent Thomas | m | 2005-11-19 | 2006-03-04 | 2 | TCD | Road, XC |
| F.W. Thompson | m | 1873-05-19 | 1873-05-19 | 1 | QUB | 4Mile W |
| John Thompson | m | 1996-12-13 | 2001-04-21 | 13 | IUAA, RCSI, TCD | 35lbWfD, DT, HT, JT, SP |
| Mark Thompson | m | 1999-06-22 | 2005-06-07 | 34 | Guest, IUAA, NI U23, QUB | 35lbWfD, DT, HT, JT, SP |
| P. Thompson | m | 1993-06-22 | 1994-06-28 | 2 | NI U20 | HT |
| Stephen Thompson | m | 2001-04-20 | 2001-04-21 | 1 | RCSI | HT |
| Steven Thompson | m | 2002-06-18 | 2003-06-10 | 2 | Guest, NI U23 | 100m, 200m |
| Thomas Thompson | m | 1995-03-04 | 1995-03-04 | 1 | DCU | XC |
| Jason Thong | m | 2009-02-14 | 2009-02-15 | 2 | IT Tralee | 200m, 60m |
| Alan Thornton | m | 2000-02-26 | 2000-02-26 | 1 | NUIG | XC |
| Eddie Thornton | m | 1959-05-13 | 1963-05-11 | 7 | UCD | 100y, 120yH, 220y |
| Gary Thornton | m | 1998-02-28 | 2003-04-26 | 13 | IUAA, NUIG | 10000m, 1500m, Road, XC |
| J.R. Thornton | m | 1939-05-27 | 1939-05-27 | 2 | UCD | 100y, 220y |
| Shane Thornton | m | 2000-12-01 | 2004-02-07 | 10 | IUAA, UCC | 4x100m, 4x200m, LJ |
| Peter Tiernan | m | 1998-02-28 | 1998-02-28 | 1 | UL | XC |
| David Tierney | m | 2009-04-24 | 2010-04-24 | 10 | UCC, UCD | 100m, 16kgWfD, DT, JT, SP |
| John Tierney | m | 1999-11-13 | 2002-04-19 | 6 | NUIM | 1500m, 5000m, CE, Road, XC |
| Conner Tiernuy | m | 2010-03-13 | 2010-03-13 | 1 | CIT | XC |
| John Tilburt | m | 1995-06-20 | 1995-06-20 | 1 | H & Y | HJ |
| D. Tilsey | m | 1972-05-05 | 1973-05-12 | 3 | TCD | 110mH, 200m, 400mH |
| Nicholas Henry Joseph Tindal | m | 1931-05-30 | 1931-05-30 | 1 | TCD | LJ |
| D. Tinley | m | 1974-05-03 | 1974-05-04 | 1 | TCD | 110mH |
| Ronan Tinsley | m | 2003-03-09 | 2003-03-09 | 1 | CIT | XC |
| W.S. Tinsley | m | 1912-06-03 | 1912-06-03 | 2 | UCC | 100y, 220y |
| Drew Tivendale | m | 1995-06-20 | 1995-06-20 | 1 | SU | 5000m |
| Ian Tivy | m | 2005-11-19 | 2008-03-08 | 17 | CIT | 1500m, 400m, 4x400m, 800m, HJ, Road, XC |
| Denis Tkatchenko | m | 2002-02-16 | 2007-04-14 | 23 | TCD | 100m, 2000mW, 3000mW, 400m, 60m, Road, XC |
| Daniel Tobin | m | 2003-04-25 | 2005-04-23 | 15 | DCU, IUAA | 200m, 400m, 4x400m |
| David Tobin | m | 2010-02-13 | 2010-02-13 | 3 | WIT | 60m, HJ, LJ |
| Robert Tobin | m | 2007-04-13 | 2007-04-14 | 1 | UCD | 110mH |
| Paul Togher | m | 2008-03-08 | 2008-03-08 | 1 | Guest | XC |
| Paul Tohill | m | 1998-06-23 | 2001-06-19 | 5 | NI U23 | 110mH, HJ |
| Eddie Toner | m | 1995-06-20 | 1995-06-20 | 1 | SU | 3000mSC |
| Ivan Toner | m | 1998-02-28 | 1999-03-06 | 2 | QUB | XC |
| James Toner | m | 1998-03-14 | 1999-06-22 | 2 | SU | 800m, XC |
| John Toner | m | 2001-04-20 | 2001-12-08 | 8 | NUIG | 100m, 200m, 4x200m, 60m, TJ |
| Gregor Toohey | m | 2004-12-03 | 2005-12-11 | 2 | NUIG | 60m |
| Gregor Toohey | m | 2007-04-13 | 2009-04-25 | 7 | UL | 4x100m, 4x200m, 60m, DT, JT, PV |
| Adrian Toolan | m | 2006-12-02 | 2009-02-15 | 11 | UCD | 400m, 4x100m, 4x200m, 4x400m, 800m, Road |
| David Toolan | m | 1994-01-21 | 1994-01-21 | 2 | UCG | 3000m, 400m |
| Humphreys Toomey | m | 1999-11-13 | 1999-11-13 | 1 | DIT | Road |
| Humphries Toomey | m | 1997-02-01 | 1999-03-06 | 3 | DIT | XC |
| J. Toomey | m | 1968-05-11 | 1968-05-11 | 1 | UCD | 440yH |
| John Toomey | m | 2003-11-22 | 2003-11-22 | 1 | UCD | Road |
| Stephen Towers | m | 2006-12-02 | 2007-04-14 | 8 | QUB | 100m, 16kgWfD, 4x200m, 60m, DT, LJ, SP |
| Liam Townsend | m | 2010-04-07 | 2010-04-24 | 8 | TCD | 100m, 200m, 4x100m, 4x400m, LJ |
| John Tracey | m | 1992-03-07 | 2003-03-22 | 14 | Guest, IUAA, NI U23, QUB, UU | 10000m, 3000m, 5000m, Road, XC |
| Rick Tracey | m | 1999-04-23 | 1999-04-24 | 1 | QUB | HJ |
| Chris Tracy | m | 2002-11-16 | 2003-03-09 | 5 | DIT | 1500m, 800m, Road, XC |
| Rick Tracy | m | 1999-04-23 | 1999-04-24 | 1 | QUB | TJ |
| J.P. Trainor | m | 1936-05-30 | 1937-05-22 | 3 | UCD | 220y, 440y |
| R. Trautman | m | 1978-05-05 | 1978-05-06 | 1 | TCD | SP |
| Ian Travers | m | 1973-05-11 | 1976-05-01 | 3 | TCD | HJ |
| L. Travers | m | 1974-05-03 | 1974-05-04 | 1 | TCD | HJ |
| Mervin Travers | m | 2004-12-03 | 2004-12-04 | 2 | UCD | 35lbWfD, SP |
| Chris Treacey | m | 2003-11-22 | 2004-11-20 | 2 | DIT | Road |
| Brian Treacy | m | 1993-03-06 | 1995-12-16 | 3 | QUB | 1500m, XC |
| Cormac Treacy | m | 2009-11-14 | 2010-04-24 | 5 | DIT | 200m, 4x400m, 60m, Road |
| Daniel Treacy | m | 2006-11-18 | 2008-11-15 | 9 | DCU | 1500m, 400mH, 800m, Road, XC |
| John Treacy | m | 1994-04-22 | 1996-02-10 | 3 | QUB | 10000m, 3000m |
| Pat Treacy | m | 1995-12-16 | 1995-12-16 | 1 | TCD | XC |
| Richard Treacy | m | 1994-06-28 | 1994-06-28 | 1 | NI U20 | HJ |
| Rick Treacy | m | 1999-06-22 | 1999-06-22 | 1 | IUAA | TJ |
| Brian Tremble | m | 1978-05-05 | 1978-05-06 | 1 | UCD | 400mH |
| Liam Tremble | m | 2010-03-13 | 2010-04-24 | 5 | TCD | 1500m, 5000m, 800m, XC |
| S. Tremier | m | 1976-04-30 | 1976-05-01 | 1 | QUB | PV |
| Ivan Trimble | m | 1993-03-06 | 1993-03-06 | 1 | UU | XC |
| Richard Tsang | m | 2010-02-13 | 2010-04-24 | 9 | UU | 16kgWfD, 4x100m, 4x200m, LJ, TJ |
| Fergal Tubridy | m | 1994-02-19 | 1999-11-13 | 9 | CIT, Cork RTC | 4x400m, 800m, Road, XC |
| Neil Tuckey | m | 1999-04-23 | 1999-04-24 | 1 | DIT | JT |
| Niall Tuckey | m | 1996-04-19 | 1996-04-20 | 1 | DIT | JT |
| David Tuite | m | 1992-04-24 | 1992-04-25 | 2 | TCD | 35lbWfD, HT |
| Ken Tuite | m | 2009-04-24 | 2009-04-25 | 1 | DIT | 100m |
| James Tully | m | 2010-02-13 | 2010-02-13 | 1 | NUIG | LJ |
| Gary Tumilty | m | 1997-06-24 | 2000-11-12 | 6 | NI U23, QUB, Queen's Select | 3000mSC, 5000m, Road, XC |
| Jason Turbitt | m | 1996-12-13 | 1996-12-14 | 3 | QUB | 60m, LJ, SP |
| T. Turkington | m | 1971-05-07 | 1971-05-08 | 1 | UU | LJ |
| Tetah Turkson | m | 1993-06-22 | 1993-06-22 | 1 | NI U20 | TJ |
| David Turnbull | m | 1998-06-23 | 1998-06-23 | 1 | SU | 200m |
| Gareth Turnbull | m | 1994-06-28 | 1994-06-28 | 1 | Guest | 1500m |
| M. Harper Turnbull | m | 1913-05-24 | 1914-06-06 | 4 | QUB | 440y, 880y, Mile |
| Andrew Turner | m | 1998-06-23 | 1998-06-23 | 1 | SU | JT |
| Colm Turner | m | 2004-11-20 | 2008-04-19 | 12 | DCU, IUAA | 3000m, 3000mSC, 5000m, M, Road, XC |
| Aleric Turtle | m | 1999-04-23 | 1999-04-24 | 1 | QUB | 200m |
| B. Tuttle | m | 1999-04-23 | 1999-04-24 | 1 | UCD | PV |
| Denis Twomey | m | 1960-05-14 | 1964-05-09 | 6 | UCD | JT*, PV |
| J. Twomey | m | 1970-05-09 | 1970-05-09 | 1 | UCD | 400m |
| Jerry Twomey | m | 1955-05-19 | 1955-05-19 | 1 | UCD | 100y |
| D. Tyler | m | 1963-05-11 | 1964-05-09 | 2 | TCD | 120yH |
| Matt Tyler | m | 1996-06-25 | 1996-06-25 | 1 | SU | 5000m |
| T. Tynan | m | 1975-05-02 | 1975-05-03 | 1 | TCE | PV |
| W. Tyrrell | m | 1947-05-21 | 1947-05-21 | 1 | UCD | LJ |
| Aoife Talty | f | 2003-11-22 | 2005-02-26 | 4 | TCD | Road, XC |
| Cliodhna Talty | f | 1997-02-01 | 1999-03-06 | 3 | NUIG, UCG | XC |
| Sarah Taplin | f | 1998-03-14 | 1998-03-14 | 1 | SU | XC |
| Trudy Taylor | f | 1995-06-20 | 1995-06-20 | 1 | H & Y | HT |
| Eilis Teahan | f | 1999-11-13 | 2000-02-26 | 2 | UCC | Road, XC |
| Karina Teahan | f | 1999-03-06 | 2003-04-26 | 12 | President's Select, UCD | 3000m, 5000m, Road, XC |
| Carina Teehan | f | 2001-02-24 | 2001-02-24 | 1 | UCD | XC |
| Karina Teehan | f | 1998-12-11 | 2000-04-15 | 2 | UCD | 1500m, 5000m |
| Nadia Termannini | f | 1998-12-11 | 1998-12-12 | 2 | TCD | 1500mW, 3000m |
| Linda Teskey | f | 1969-05-03 | 1969-05-03 | 3 | QUB | 100y, 220y, 440y |
| Judith Thelen | f | 2002-12-06 | 2002-12-07 | 2 | IT Tralee | 200m, 60m |
| Brenda Thompson | f | 1995-04-21 | 1996-06-25 | 9 | IUAA, TCD | DT, HT, SP |
| Fiona Thompson | f | 2007-03-31 | 2008-03-28 | 2 | SU | F, XC |
| Gemma Thompson | f | 2001-06-19 | 2004-12-04 | 12 | NI U23, UU | 100m, 200m, 4x200m, 60m |
| Kealey Tideswell | f | 2004-12-03 | 2004-12-04 | 1 | RCSI | 1500m |
| Theresa Tierney | f | 2004-12-03 | 2004-12-04 | 2 | Dundalk IT | 3000m, 4x200m |
| Orla Timmins | f | 2008-03-08 | 2010-03-13 | 4 | TCD | LJ, Road, XC |
| Nicola Timmons | f | 1993-02-12 | 1994-01-21 | 4 | DCU, IUAA | 400m |
| Fiona Tinman | f | 1987-05-08 | 1991-05-04 | 8 | QUB | 100m, 200m, 4x100m |
| H. Tinto | f | 1991-05-03 | 1991-05-04 | 1 | UU | JT* |
| Nienke Tjoelker | f | 2008-04-18 | 2008-11-15 | 2 | UCC | 100m, Road |
| Debbie Tobin | f | 1985-05-03 | 1986-05-03 | 4 | TCE | JT*, SP |
| Triona Tobin | f | 1999-04-23 | 1999-04-24 | 1 | IT Tralee | JT |
| M. Tomassonia | f | 1991-05-03 | 1991-05-04 | 2 | UCC | DT, SP |
| Jen Tomlinson (Jane Eyre) | f | 1994-02-19 | 1994-02-19 | 1 | UCC | XC |
| Georgina Touhey | f | 2001-11-07 | 2001-12-08 | 3 | NUIM | 1500m, 1500mW, Road |
| Orla Touhy | f | 2004-04-16 | 2004-04-17 | 1 | UCC | 5000m |
| Christine Townshend | f | 2003-04-25 | 2003-04-26 | 3 | NUIM | 100m, 200m |
| Sara Tracey | f | 2010-04-23 | 2010-04-24 | 2 | Guest | 800m |
| Margaret Trainor | f | 1993-06-22 | 1993-06-22 | 2 | NI U20 | LJ, TJ |
| Barbara Travers | f | 2010-03-13 | 2010-03-13 | 1 | NUIG | XC |
| Fódhla Treacy | f | 2003-11-22 | 2008-04-19 | 35 | IUAA, TCD | 4x200m, 4x400m, 800m, LJ, PV, Road, TJ, XC |
| Olivia Treacy | f | 2002-11-16 | 2003-11-22 | 3 | TCD | Road, XC |
| Bryony Treston | f | 2006-11-18 | 2010-04-24 | 24 | IUAA, President's Select, TCD | 12, 4, 8, 16, 1500m, 3000m, 3000mSC, 5000m, 800m, F, LJ, Road, XC |
| C. Treston | f | 1968-05-11 | 1968-05-11 | 1 | UCD | 880y |
| Kathy Truran | f | 1997-04-25 | 1997-04-26 | 4 | UL | DT, HT, JT*, SP |
| Gemma Turley | f | 1998-06-23 | 2000-06-20 | 3 | NI U23 | 100mH, 400mH |
| P. Turley | f | 1981-05-01 | 1981-05-02 | 1 | QUB | 400mH |
| Kellie Turtle | f | 1999-03-06 | 1999-03-06 | 1 | QUB | XC |
| Grainne Tynan | f | 2008-11-15 | 2008-11-15 | 1 | UCC | Road |
| Orla Tyndall | f | 2010-04-23 | 2010-04-24 | 3 | CIT | 4x100m, 4x400m, LJ |
| E. Tyrrell | f | 1974-05-03 | 1974-05-04 | 1 | TCE | 800m |