The 2020 Open de Cagnes-sur-Mer was a professional tennis tournament played on outdoor clay courts. It was the twenty-third edition of the tournament which was part of the 2020 ITF Women's World Tennis Tour. It took place in Cagnes-sur-Mer, France between 14 and 20 September 2020.
Singles main-draw entrants
Seeds
1 Rankings are as of 31 August 2020.
Other entrants
The following players received wildcards into the singles main draw: Mariam Bolkvadze Chloé Paquet Diane Parry Harmony Tan
The following player received entry using a junior exempt: Clara Burel
The following player received entry through a special exempt: Cristina Bucșa
The following players received entry from the qualifying draw: Daria Gavrilova Ekaterine Gorgodze Elsa Jacquemot Séléna Janicijevic Varvara Lepchenko Carole Monnet Daniela Seguel Eden Silva
The following player received entry as a lucky loser: Nicoleta Dascălu
Champions
Singles
Sara Sorribes Tormo def. Irina Bara, 6–3, 6–4
Doubles
Samantha Murray Sharan / Julia Wachaczyk def. Paula Kania / Katarzyna Piter, 7–5, 6–2