2023 Hall of Fame Open – Singles
| Singles | |
|---|---|
| 2023 Hall of Fame Open | |
| Champion | Adrian Mannarino |
| Runner-up | Alex Michelsen |
| Score | 6–2, 6–4 |
| Draw | 28 |
| Seeds | 8 |
Adrian Mannarino defeated Alex Michelsen in the final, 6–2, 6–4 to win the singles tennis title at the 2023 Hall of Fame Open. It was his third ATP Tour singles title.
Maxime Cressy was the defending champion, but lost in the first round to Michelsen.