Tallest: 1 · Year
By quarter-hour; stoppage time counts as the 45th or 90th minute.
Tallest: 1 · Minute
Republic of Ireland's matches with known line-ups from their first recorded cap to their last.
| With them | 12 | 5 | 4 | 3 | 18 | 10 | 41.7% |
| Without them | 1 | 0 | 0 | 1 | 2 | 4 | 0% |
| Abdulaziz Al-Khathran | Saudi Arabia | 1 |
| Abdullah Al-Jumaan | Saudi Arabia | 1 |
| Abdullah Sulaiman Zubromawi | Saudi Arabia | 1 |
| Ahmed Al-Dokhi | Saudi Arabia | 1 |
| Aki Riihilahti | Finland | 1 |
| Al Hasan Al-Yami | Saudi Arabia | 1 |
| Albert Luque | Spain | 1 |
| Alexander Frei | Switzerland | 1 |
| Alexandr Mostovoi | Russia | 1 |
| Alioum Boukar | Cameroon | 1 |
| Cyprus | 1 | 1 |
Finals and qualifying campaigns alike.
| 24 Mar 2001 | v Cyprus | 4–0 | 80′ | — | Extended lead | 3–0 | FIFA World Cup qualification 2001 |
In a recorded line-up, on the scoresheet or booked. “—” where the line-up isn't known.
| 16 Oct 2002 | v Switzerland | 1–2 | started | 90 | — | — | UEFA Euro qualification 2002 |
| 21 Aug 2002 | v Finland | 3–0 | started | 90 | — | — | Friendly |
| 16 Jun 2002 | v Spain | 1–1 | started, off 55′ | 55 | — | — | FIFA World Cup 2002 · Round of 16 |
| 11 Jun 2002 | v Saudi Arabia | 3–0 | started, off 80′ | 80 | — | — | FIFA World Cup 2002 · Group stage |
| 5 Jun 2002 | v Germany | 1–1 | started, off 73′ | 73 | — | — | FIFA World Cup 2002 · Group stage |
| 1 Jun 2002 | v Cameroon | 1–1 | started | 90 | — | — | FIFA World Cup 2002 · Group stage |
| 16 May 2002 | v Nigeria | 1–2 | came on 61′ | 29 | — | — | Friendly |
| 17 Apr 2002 | v United States | 2–1 | came on 46′ | 44 | — | — | Friendly |
| 27 Mar 2002 | v Denmark | 3–0 | started | 90 | — | — | Friendly |
| 13 Feb 2002 | v Russia | 2–0 | came on 45′ | 45 | — | — | Friendly |
| 24 Mar 2001 | v Cyprus | 4–0 | — | — | 1 | — | FIFA World Cup qualification 2001 |
| 4 Jul 1994 | v Netherlands | 0–2 | started | 90 | — | — | FIFA World Cup 1994 · Round of 16 |
| 28 Jun 1994 | v Norway | 0–0 | started | 90 | — | Yellow | FIFA World Cup 1994 · Group stage |
Caps, goals and cards count what the sources record: line-ups from about 2003 (World Cups from 1970, friendlies from about 2016), and few scorers in older friendlies — so career totals run low.