| Champ: |  Sloane Stephens |
| Runner: |  Greet Minnen |
| Score: | 6–3, 6–4 |
| Type: | singles doubles |
| Draw: | 32 |
See main article: article and 2023 L'Open 35 de Saint-Malo.
Beatriz Haddad Maia was the defending champion,[1] but chose to participate in the Madrid Open, instead.
Sloane Stephens won the title, defeating Greet Minnen in the final, 6–3, 6–4. This was Stephens first WTA 125 title, despite having won titles in the main WTA Tour.