| Competition | Goals | Apps | Started | Minutes | Sub On | Sub Off | ||
|---|---|---|---|---|---|---|---|---|
| Portugal | ||||||||
| Primeira Liga | 5 | 87 | 80 | 6,825' | 7 | 18 | 20 | 1 |
| Segunda Liga | 0 | 13 | 12 | 959' | 1 | 4 | 6 | 0 |
| Taça da Liga | 1 | 6 | 6 | 552' | 0 | 1 | 0 | 0 |
| Taça de Portugal | 0 | 4 | 3 | 275' | 1 | 1 | 0 | 0 |
| Europe | ||||||||
| UEFA Champions League | 1 | 18 | 16 | 1,366' | 2 | 2 | 1 | 0 |
| UEFA Europa League | 1 | 12 | 9 | 871' | 3 | 1 | 2 | 0 |
| England | ||||||||
| Premier League | 0 | 5 | 4 | 365' | 1 | 1 | 0 | 0 |
| Carabao Cup | 0 | 1 | 1 | 60' | 0 | 1 | 0 | 0 |
| World | ||||||||
| The Atlantic Cup | 0 | 2 | 1 | 124' | 1 | 0 | 0 | 0 |
| Total | 8 | 148 | 132 | 11,397' | 16 | 29 | 29 | 1 |
| Club | Season | League | National cup | League cup | Europe | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Division | Apps | Gls | Apps | Gls | Apps | Gls | Apps | Gls | Apps | Gls | ||
Midtjylland | 2022 | - | - | - | 2 | 0 | - | - | - | - | 2 | 0 |
| Total | - | - | 2 | 0 | - | - | - | - | 2 | 0 | ||
Sporting CP | 2022/2023 | Primeira Liga | 13 | 1 | - | - | - | - | 4 | 0 | 17 | 1 |
| 2023/2024 | Primeira Liga | 26 | 2 | 4 | 0 | - | - | 8 | 1 | 38 | 3 | |
| 2024/2025 | Primeira Liga | 31 | 2 | 2 | 0 | - | - | 9 | 0 | 42 | 2 | |
| 2025/2026 | Primeira Liga | 17 | 0 | - | - | - | - | 9 | 1 | 26 | 1 | |
| 2026/2027 | Primeira Liga | - | - | - | - | - | - | - | - | - | - | |
| Total | 87 | 5 | 6 | 0 | - | - | 30 | 2 | 123 | 7 | ||
Mafra | 2022/2023 | Segunda Liga | 13 | 0 | 4 | 1 | - | - | - | - | 17 | 1 |
| Total | 13 | 0 | 4 | 1 | - | - | - | - | 17 | 1 | ||
Forest | 2026/2027 | Premier League | 5 | 0 | - | - | 1 | 0 | - | - | 6 | 0 |
| Total | 5 | 0 | - | - | 1 | 0 | - | - | 6 | 0 | ||
| Career total | 105 | 5 | 12 | 1 | 1 | 0 | 30 | 2 | 148 | 8 | ||
Every club and season of Ousmane Diomandé's career. For this season, see Ousmane Diomandé stats 2026-27.