| Date: | 14–20 September 2020 |
| Edition: | 23rd |
| Surface: | Clay |
| Location: | Cagnes-sur-Mer, France |
| Category: | ITF Women's World Tennis Tour |
| Prize Money: | $80,000 |
| Champs: |  Sara Sorribes Tormo |
| Champd: |  Samantha Murray Sharan / Julia Wachaczyk |
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.[1]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Spain | Sara Sorribes Tormo | 82 | 1 | |
 Serbia | Nina Stojanović | 86 | 2 | |
 Russian Federation | Varvara Gracheva | 102 | 3 | |
 Belgium | Greet Minnen | 107 | 4 | |
 Ukraine | Katarina Zavatska | 108 | 5 | |
 France | Océane Dodin | 115 | 6 | |
 Australia | Maddison Inglis | 119 | 7 | |
| Belgium | Ysaline Bonaventure | 121 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry using a junior exempt:
The following player received entry through a special exempt:
The following players received entry from the qualifying draw:
Daria Gavrilova
Ekaterine Gorgodze Elsa Jacquemot Séléna Janicijevic
Varvara Lepchenko Carole Monnet Eden SilvaThe following player received entry as a lucky loser:
See main article: 2020 Open de Cagnes-sur-Mer – Singles.
Sara Sorribes Tormo def. 
Irina Bara, 6–3, 6–4See main article: 2020 Open de Cagnes-sur-Mer – Doubles.
Samantha Murray Sharan / Julia Wachaczyk def. 
Paula Kania / Katarzyna Piter, 7–5, 6–2