| - | 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 |
|---|---|---|---|---|---|---|
| Barry Upton | m | 2004-12-03 | 2010-04-24 | 26 | IUAA, WIT | 200m, 400m, 400mH, 4x100m, 4x400m, 60mH |
| Samuel Urvoy | m | 2004-12-03 | 2004-12-04 | 1 | UL | 60m |
| Karl Ussher | m | 2000-12-01 | 2000-12-02 | 3 | UCD | 60m, LJ |