The 2023 L'Open 35 de Saint-Malo was a professional tennis tournament played on outdoor clay courts.

It was the twenty-eighth edition of the tournament and a part of the 2023 WTA 125 tournaments.

It took place at the Tennis Club JA Saint-Malo in Saint-Malo, France between 1 and 7 May 2023.

[1] The following players received wildcards into the singles main draw: The following player received entry into the main draw through protected ranking: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: