2025 Mubadala Citi DC Open – Men's singles
| Men's singles | |
|---|---|
| 2025 Mubadala Citi DC Open | |
| Champion | Alex de Minaur |
| Runner-up | Alejandro Davidovich Fokina |
| Score | 5–7, 6–1, 7–6(7–3) |
| Draw | 48 (6Q / 5WC) |
| Seeds | 16 |
Alex de Minaur defeated Alejandro Davidovich Fokina in the final, 5–7, 6–1, 7–6(7–3) to win the men's singles tennis title at the 2025 Washington Open. De Minaur saved three championship points en route to his tenth ATP Tour singles title.
Sebastian Korda was the reigning champion, but withdrew before the tournament.