2021 Astana Open – Men's doubles
| Men's doubles | |
|---|---|
| 2021 Astana Open | |
| Champions |  Santiago González  Andrés Molteni  | 
| Runners-up |  Jonathan Erlich  Andrei Vasilevski  | 
| Score | 6–1, 6–2 | 
Sander Gillé and Joran Vliegen were the defending champions, but chose not to participate this year.
Santiago González and Andrés Molteni won the title, defeating Jonathan Erlich and Andrei Vasilevski in the final, 6–1, 6–2.