| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2025/2026 | Shamrock Rovers | Conference League | 1 | 0 | 0 | 0 | 0 | – |
| 2024/2025 | Shamrock Rovers | Conference League | 7 | 0 | 0 | 0 | 0 | 6.7 |
| 2024/2025 | Shamrock Rovers | Europa League | 4 | 0 | 0 | 0 | 0 | – |
| 2024/2025 | Shamrock Rovers | Champions League | 4 | 0 | 0 | 0 | 0 | – |
| 2023/2024 | Shamrock Rovers | Europa Conference League | 2 | 0 | 0 | 0 | 0 | 6.7 |
| 2023/2024 | Shamrock Rovers | Champions League | 2 | 0 | 0 | 1 | 0 | – |
| 2022/2023 | Shamrock Rovers | Europa Conference League | 5 | 0 | 0 | 2 | 0 | 7.0 |
| 2022/2023 | Shamrock Rovers | Europa League | 4 | 1 | 0 | 1 | 0 | – |
| 2022/2023 | Shamrock Rovers | Champions League | 4 | 0 | 0 | 0 | 0 | – |
| 2021/2022 | Shamrock Rovers | Europa Conference League | 4 | 0 | 0 | 0 | 0 | – |
| 2021/2022 | Shamrock Rovers | Champions League | 2 | 0 | 0 | 1 | 0 | – |
| 2020/2021 | Shamrock Rovers | Europa League | 2 | 0 | 0 | 1 | 0 | – |
| 2019/2020 | Shamrock Rovers | Europa League | 3 | 1 | 0 | 0 | 0 | – |
| 2015/2016 | UC Dublin | Europa League | 4 | 0 | 0 | 0 | 0 | – |
| Total | 48 | 2 | 0 | 6 | 0 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| 07 ene 2019 | UC Dublin | Shamrock Rovers | ||
| 01 ene 2015 | Hereford | UC Dublin | ||
| - | Port Vale | Hereford | Free agent | |
| - | Southport | Port Vale | Return from loan | |
| - | Port Vale | Southport | Loan | |
| - | Wolves | Port Vale | Transfer |
G. O'Neill career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.