The 2020 L'Open 35 de Saint-Malo was a professional tennis tournament played on outdoor clay courts.

It was the twenty-fifth edition of the tournament which was part of the 2020 ITF Women's World Tennis Tour.

It took place in Saint-Malo, France between 7 and 13 September 2020.

[1] The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: