2021 Engie Open de Biarritz – Doubles

Manon Arcangioli and Kimberley Zimmermann were the defending champions, having won the previous edition in 2019, however both players chose not to participate.

Oksana Selekhmeteva and Daniela Vismane won the title, defeating Sarah Beth Grey and Magali Kempen in the final, 6–3, 7–6(7–5).

Seeds
• # 🇲🇽 Ana Sofía Sánchez / Daniela Seguel (quarterfinals)

• # 🇬🇧 Sarah Beth Grey / 🇧🇪 Magali Kempen (final)

• # 🇫🇷 Estelle Cascino / 🇧🇬 Elitsa Kostova (quarterfinals)

• # 🇦🇺 Seone Mendez / 🇺🇸 Katerina Stewart (semifinals)