| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2025/2026 | Celtic | Scottish Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2025/2026 | Celtic | League Cup | 4 | 0 | 3 | 0 | 0 | – |
| 2024/2025 | Arsenal | FA Cup | 1 | 0 | 0 | 0 | 0 | 6.7 |
| 2024/2025 | Arsenal | EFL Cup | 1 | 0 | 0 | 0 | 0 | 7.3 |
| 2023/2024 | Real Sociedad | Copa del Rey | 2 | 0 | 0 | 0 | 0 | 7.0 |
| 2023 | Arsenal | FA Community Shield | 1 | 0 | 0 | 0 | 0 | – |
| 2022/2023 | Arsenal | FA Cup | 2 | 0 | 0 | 0 | 0 | 6.5 |
| 2022/2023 | Arsenal | EFL Cup | 1 | 0 | 0 | 0 | 0 | 6.7 |
| 2021/2022 | Arsenal | EFL Cup | 2 | 0 | 0 | 0 | 0 | 7.1 |
| 2021/2022 | Arsenal | FA Cup | 1 | 0 | 0 | 0 | 0 | 6.7 |
| 2020/2021 | Arsenal | FA Cup | 1 | 0 | 1 | 0 | 0 | 8.2 |
| 2020 | Arsenal | FA Community Shield | 1 | 0 | 0 | 0 | 0 | – |
| 2019/2020 | Arsenal | FA Cup | 3 | 0 | 1 | 0 | 0 | 6.9 |
| 2019/2020 | Arsenal | EFL Cup | 2 | 0 | 0 | 0 | 0 | 6.8 |
| 2018/2019 | Celtic | Scottish Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2018/2019 | Celtic | League Cup | 3 | 0 | 0 | 1 | 0 | – |
| 2017/2018 | Celtic | Scottish Cup | 5 | 0 | 0 | 0 | 0 | – |
| 2017/2018 | Celtic | League Cup | 4 | 1 | 0 | 0 | 0 | – |
| 2016/2017 | Celtic | Scottish Cup | 5 | 1 | 0 | 0 | 0 | – |
| 2016/2017 | Celtic | League Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2015/2016 | Celtic | Scottish Cup | 3 | 0 | 0 | 0 | 0 | – |
| 2015/2016 | Celtic | Insurance League Cup | 1 | 0 | 0 | 0 | 0 | – |
| Total | 49 | 2 | 5 | 1 | 0 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| 07 ene 2025 | Arsenal | Celtic | Free agent | |
| - | Real Sociedad | Arsenal | Return from loan | |
| - | Arsenal | Real Sociedad | Loan | |
| 08 ago 2019 | Celtic | Arsenal | Transfer |
K. Tierney career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.