See main article: article and 2021 Engie Open Saint-Gaudens Occitanie.
Martina Di Giuseppe and Giulia Gatto-Monticone were the defending champions having won the previous edition in 2019,[1] but chose not to participate.
Estelle Cascino and Jessika Ponchet won the title, defeating Eden Silva and Kimberley Zimmermann in the final, 0–6, 7–5, [10–7].