2021 Singapore Tennis Open – Doubles
| Doubles | |
|---|---|
| 2021 Singapore Tennis Open | |
| Champions | Sander Gillé Joran Vliegen |
| Runners-up | Matthew Ebden John-Patrick Smith |
| Score | 6–2, 6–3 |
The Singapore Tennis Open was a new addition to the ATP Tour in 2021.
Sander Gillé and Joran Vliegen won the title, defeating Matthew Ebden and John-Patrick Smith in the final, 6–2, 6–3.