See main article: article and 2021 Engie Open Nantes Atlantique.
Akgul Amanmuradova and Ekaterine Gorgodze were the defending champions[1] but chose not to participate.
Samantha Murray Sharan and Jessika Ponchet won the title, defeating Alicia Barnett and Olivia Nicholls in the final, 6–4, 6–2.