Tallest: 2 · 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 | 4 | 1 | 3 | 0 | 6 | 3 | 25% |
| Without them | 0 | 0 | 0 | 0 | 0 | 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 |
| Al Hasan Al-Yami | Saudi Arabia | 1 |
| Albert Luque | Spain | 1 |
| Alioum Boukar | Cameroon | 1 |
| Bernd Schneider | Germany | 1 |
| Bill Tchato | Cameroon | 1 |
| Carles Puyol | Spain | 1 |
Finals and qualifying campaigns alike.
| 1 Jun 2002 | v Cameroon | 1–1 | 52′ | — | Equaliser | 1–1 | FIFA World Cup 2002 · Group stage |
| 6 Jun 2001 | v Estonia | 2–0 | 38′ | — | Extended lead | 2–0 | FIFA World Cup qualification 2001 |
| 28 Mar 2001 | v Andorra | 3–0 | 80′ | — | Extended lead | 3–0 | FIFA World Cup qualification 2001 |
| 7 Oct 2000 | v Portugal | 1–1 | 73′ | — | Equaliser | 1–1 | FIFA World Cup qualification 2000 |
In a recorded line-up, on the scoresheet or booked. “—” where the line-up isn't known.
| 16 Jun 2002 | v Spain | 1–1 | started | 120 | — | — | FIFA World Cup 2002 · Round of 16 |
| 11 Jun 2002 | v Saudi Arabia | 3–0 | started | 90 | — | — | FIFA World Cup 2002 · Group stage |
| 5 Jun 2002 | v Germany | 1–1 | started | 90 | — | — | FIFA World Cup 2002 · Group stage |
| 1 Jun 2002 | v Cameroon | 1–1 | started | 90 | 1 | — | FIFA World Cup 2002 · Group stage |
| 6 Jun 2001 | v Estonia | 2–0 | — | — | 1 | — | FIFA World Cup qualification 2001 |
| 28 Mar 2001 | v Andorra | 3–0 | — | — | 1 | — | FIFA World Cup qualification 2001 |
| 7 Oct 2000 | v Portugal | 1–1 | — | — | 1 | — | FIFA World Cup qualification 2000 |
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.