Select season:
Northern Ireland's youngest 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 measured in days, and in years and days, from their date of birth to the day of their first appearance.
| Player | Age (Y:d) | Age (days) | Match |
|---|---|---|---|
| Dave Stewart | 19:180 | 7120 | 16 Nov 1977v Belgium |
| David McCreery | 20:5 | 7310 | 21 Sep 1977v Iceland |
| Jimmy Nicholl | 20:267 | 7572 | 21 Sep 1977v Iceland |
| Billy Hamilton | 21:3 | 7674 | 13 May 1978v Scotland |
| Chris McGrath | 22:296 | 8332 | 21 Sep 1977v Iceland |
| Sammy McIlroy | 23:50 | 8451 | 21 Sep 1977v Iceland |
| Gerry Armstrong | 23:177 | 8578 | 16 Nov 1977v Belgium |
| Terry Cochrane | 25:109 | 9241 | 13 May 1978v Scotland |
| Martin O'Neill | 25:203 | 9335 | 21 Sep 1977v Iceland |
| Peter Scott | 25:235 | 9367 | 13 May 1978v Scotland |
| Jim Platt | 26:107 | 9604 | 13 May 1978v Scotland |
| Trevor Anderson | 26:202 | 9699 | 21 Sep 1977v Iceland |
| Sammy Nelson | 28:173 | 10400 | 21 Sep 1977v Iceland |
| Pat Rice | 28:188 | 10415 | 21 Sep 1977v Iceland |
| Chris Nicholl | 31:35 | 11358 | 16 Nov 1977v Belgium |
| Allan Hunter | 31:83 | 11406 | 21 Sep 1977v Iceland |
| George Best | 31:122 | 11445 | 21 Sep 1977v Iceland |
| Bryan Hamilton | 31:143 | 11466 | 13 May 1978v Scotland |
| Pat Jennings | 32:101 | 11789 | 21 Sep 1977v Iceland |