2023 Halle Open – Singles
| Singles | |
|---|---|
| 2023 Halle Open | |
| Champion | Alexander Bublik |
| Runner-up | Andrey Rublev |
| Score | 6–3, 3–6, 6–3 |
| Draw | 32 (4 Q / 3 WC ) |
| Seeds | 8 |
Alexander Bublik defeated Andrey Rublev in the final, 6–3, 3–6, 6–3 to win the singles tennis title at the 2023 Halle Open.
Hubert Hurkacz was the defending champion, but lost in the second round to Tallon Griekspoor.