| Display name | O'Brien, John | Surname | O'Brien |
| First name | John | Nationality | - |
| Date of birth | - | Total appearances | 28 |
| Apps | Goals | Starts | Sub | Unused | First match | Last match |
|---|---|---|---|---|---|---|
| 28 | 8 | 28 | 0 | 1 | 24 Jan 1981 — Pembroke Borough | 15 Mar 1986 — Port Talbot Athletic |
| Season | Apps | Starts | Sub | Unused | Goals | First match | Last match |
|---|---|---|---|---|---|---|---|
| 1985-86 | 8 | 8 | 0 | 0 | 3 | 26 Dec 1985 | 15 Mar 1986 |
| 1980-81 | 20 | 20 | 0 | 1 | 5 | 24 Jan 1981 | 30 Apr 1981 |
| Date | Season | Opponent | Venue | Role | Goals | Match |
|---|---|---|---|---|---|---|
| 15 Mar 1986 | 1985-86 | Port Talbot Athletic | H | Start | View match | |
| 16 Feb 1986 | 1985-86 | Pembroke Borough | H | Start | View match | |
| 15 Feb 1986 | 1985-86 | Caerleon | H | Start | 2 | View match |
| 01 Feb 1986 | 1985-86 | Barry Town United | H | Start | View match | |
| 25 Jan 1986 | 1985-86 | Haverfordwest County | A | Start | View match | |
| 18 Jan 1986 | 1985-86 | Ebbw Vale | A | Start | View match | |
| 11 Jan 1986 | 1985-86 | Briton Ferry Athletic | A | Start | 1 | View match |
| 26 Dec 1985 | 1985-86 | Haverfordwest County | H | Start | View match | |
| 30 Apr 1981 | 1980-81 | Bridgend Town | A | Start | View match | |
| 28 Apr 1981 | 1980-81 | Barry Town | A | Start | 1 | View match |
| 25 Apr 1981 | 1980-81 | Caerleon | A | Start | 1 | View match |
| 22 Apr 1981 | 1980-81 | Caerleon | H | Start | View match | |
| 20 Apr 1981 | 1980-81 | Pontllanfraith | A | Start | View match | |
| 18 Apr 1981 | 1980-81 | Cardiff Corinthians | H | Start | 1 | View match |
| 15 Apr 1981 | 1980-81 | Cardiff Corinthians | A | Start | 1 | View match |
| 11 Apr 1981 | 1980-81 | Maesteg Park Athletic | H | Start | View match | |
| 06 Apr 1981 | 1980-81 | Cardiff City Reserves | H | Start | View match | |
| 04 Apr 1981 | 1980-81 | Haverfordwest County | A | Start | 1 | View match |
| 01 Apr 1981 | 1980-81 | Milford United | H | Start | View match | |
| 28 Mar 1981 | 1980-81 | Cardiff City Reserves | A | Start | View match | |
| 07 Mar 1981 | 1980-81 | Milford United | A | Start | View match | |
| 04 Mar 1981 | 1980-81 | Merthyr Tydfil | A | Start | View match | |
| 28 Feb 1981 | 1980-81 | Pontlottyn | H | Start | View match | |
| 21 Feb 1981 | 1980-81 | Ton Pentre | H | UnusedSub | View match | |
| 11 Feb 1981 | 1980-81 | Newport County Reserves | A | Start | View match | |
| 07 Feb 1981 | 1980-81 | Pembroke Borough | H | Start | View match | |
| 04 Feb 1981 | 1980-81 | Ton Pentre | A | Start | View match | |
| 31 Jan 1981 | 1980-81 | Pontlottyn | A | Start | View match | |
| 24 Jan 1981 | 1980-81 | Pembroke Borough | A | Start | View match |