Select season:
Republic of Ireland's oldest players during the 1978 season, and their age in years and days on the occasion of their final appearance, starting or coming on as a substitute.
For each player age is given in days, and in years and days, from their date of birth.
| Player | Age (Y:d) | Age (days) | Match |
|---|---|---|---|
| Johnny Giles | 37:198 | 13713 | 24 May 1978v Denmark |
| Paddy Mulligan | 33:67 | 12121 | 24 May 1978v Denmark |
| Ray Treacy | 31:298 | 11621 | 12 Apr 1978v Poland |
| Steve Heighway | 30:180 | 11138 | 24 May 1978v Denmark |
| Don Givens | 28:288 | 10515 | 24 May 1978v Denmark |
| Mick Kearns | 27:179 | 10041 | 24 May 1978v Denmark |
| Noel Synnott | 26:119 | 9616 | 12 Apr 1978v Poland |
| Jimmy Holmes | 24:194 | 8960 | 24 May 1978v Denmark |
| Gerry Daly | 24:24 | 8790 | 24 May 1978v Denmark |
| Paul McGee | 23:339 | 8740 | 24 May 1978v Denmark |
| Gerry Ryan | 22:183 | 8219 | 05 Apr 1978v Turkey |
| Maurice Daly | 22:135 | 8171 | 12 Apr 1978v Poland |
| Liam Brady | 22:97 | 8133 | 21 May 1978v Norway |
| Gerry Peyton | 21:326 | 7997 | 12 Apr 1978v Poland |
| Frank Stapleton | 21:317 | 7988 | 24 May 1978v Denmark |
| Tony Grealish | 21:244 | 7915 | 24 May 1978v Denmark |
| Dave Langan | 21:94 | 7765 | 21 May 1978v Norway |
| Mark Lawrenson | 20:356 | 7661 | 24 May 1978v Denmark |
| Ashley Grimes | 20:292 | 7597 | 21 May 1978v Norway |
| David O'Leary | 20:22 | 7327 | 24 May 1978v Denmark |