| Doubles | |
|---|---|
| 2021 Engie Open Saint-Gaudens Occitanie | |
| Champions |  Estelle Cascino Jessika Ponchet |
| Runners-up |  Eden Silva  Kimberley Zimmermann |
| Final score | 0–6, 7–5, [10–7] |
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].
Eden Silva / Kimberley Zimmermann (Final) Estelle Cascino / Jessika Ponchet (Champions)
Tayisiya Morderger / Yana Morderger (First round)
Destanee Aiava / 
Angelica Moratelli (Semifinals)| First Round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | E Silva K Zimmermann | 7 | 6 | ||||||||||||||||||||||||
| A Droguet S Janicijevic | 6 | 6 | A Droguet S Janicijevic | 5 | 3 | ||||||||||||||||||||||
 D Astakhova E Makarova | 3 | 0 | 1 | E Silva K Zimmermann | 6 | 78 | |||||||||||||||||||||
| 4 | D Aiava A Moratelli | w/o | 4 | D Aiava A Moratelli | 3 | 66 | |||||||||||||||||||||
 J Grabher  Q Zheng | 4 | D Aiava A Moratelli | w/o | ||||||||||||||||||||||||
| A Albié L Jeanjean | 62 | 0 | E Jacquemot L Wargnier | ||||||||||||||||||||||||
| E Jacquemot L Wargnier | 77 | 6 | 1 | E Silva K Zimmermann | 6 | 5 | [7] | ||||||||||||||||||||
 E-s Liang  V Strakhova | 2 | 6 | [11] | 2 | E Cascino J Ponchet | 0 | 7 | [10] | |||||||||||||||||||
 M Bolkvadze  I Shinikova | 6 | 4 | [9] | E-s Liang V Strakhova | 6 | 6 | |||||||||||||||||||||
| O Babel L Nguyen Tan | 77 | 7 | O Babel L Nguyen Tan | 1 | 1 | ||||||||||||||||||||||
| 3 | T Morderger Y Morderger | 64 | 5 | E-s Liang V Strakhova | 0 | 1 | |||||||||||||||||||||
| T Andrianjafitrimo C Monnet | 6 | 3 | [10] | 2 | E Cascino J Ponchet | 6 | 6 | ||||||||||||||||||||
 C Bucșa V Koval | 3 | 6 | [7] | T Andrianjafitrimo C Monnet | 0 | 6 | [7] | ||||||||||||||||||||
 J Mikulskytė  OG Simion | 3 | 7 | [5] | 2 | E Cascino J Ponchet | 6 | 4 | [10] | |||||||||||||||||||
| 2 | E Cascino J Ponchet | 6 | 5 | [10] | |||||||||||||||||||||||
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