John O'Sullivan
- Midfielder · Central midfielder
- #26 Shamrock Rovers
Seasons
| Season | Team | Competition | Apps | St | Min | G | A | YC | RC | Avg rating |
|---|---|---|---|---|---|---|---|---|---|---|
| Domestic league | ||||||||||
| 2026 |  Shamrock Rovers | League of Ireland Premier Division | 18 | 6 | 762 | 0 | 1 | 3 | 0 | 6.68 |
| 2025 | Shamrock Rovers | League of Ireland Premier Division | 6 | 2 | 253 | 0 | 0 | 1 | 0 | 6.80 |
| 2025 |  Drogheda United | League of Ireland Premier Division | 3 | 0 | 46 | 0 | 0 | 0 | 0 | 6.50 |
| 2024 |  Bray Wanderers | League of Ireland Premier Division | 1 | 1 | 0 | 0 | 0 | 0 | 0 | – |
| 2024 | Shamrock Rovers | League of Ireland Premier Division | 1 | 0 | 15 | 0 | 0 | 0 | 0 | 7.00 |
| 2022 | Shamrock Rovers | League of Ireland Premier Division | 0 | 0 | 0 | 0 | 0 | 0 | 0 | – |
| Total | 29 | 9 | 1076 | 0 | 1 | 4 | 0 | 6.70 | ||
| Continental | ||||||||||
| 2026-27 | Shamrock Rovers | UEFA Champions League | 2 | 1 | 103 | 0 | 0 | 0 | 0 | – |
| 2026-27 | Shamrock Rovers | UEFA Europa Conference League | 1 | 1 | 0 | 0 | 0 | 0 | 0 | – |
| 2026-27 | Shamrock Rovers | UEFA Europa League | 0 | 0 | 0 | 0 | 0 | 0 | 0 | – |
| Total | 3 | 2 | 103 | 0 | 0 | 0 | 0 | – | ||
Sources: API-Football · Data sources