2023 L'Open 35 de Saint-Malo – Singles

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.

[2] This was Stephens first WTA 125 title, despite having won titles in the main WTA Tour.