2023 Erste Bank Open – Singles
| Singles | |
|---|---|
| 2023 Erste Bank Open | |
| Champion | Jannik Sinner |
| Runner-up | Daniil Medvedev |
| Score | 7–6(9–7), 4–6, 6–3 |
| Draw | 32 (4 Q / 3 WC ) |
| Seeds | 8 |
Jannik Sinner defeated the defending champion Daniil Medvedev in the final, 7–6(9–7), 4–6, 6–3 to win the singles tennis title at the 2023 Vienna Open. It was his tenth ATP Tour singles title.