2021 J&T Banka Ostrava Open – Doubles
| Doubles | |
|---|---|
| 2021 J&T Banka Ostrava Open | |
| Champions | Sania Mirza Zhang Shuai |
| Runners-up | Kaitlyn Christian Erin Routliffe |
| Score | 6–3, 6–2 |
Elise Mertens and Aryna Sabalenka were the defending champions, but chose not to participate.
Sania Mirza and Zhang Shuai won the title, defeating Kaitlyn Christian and Erin Routliffe in the final, 6–3, 6–2.