| 2021 Stockholm Open | |
|---|---|
| Date | 7–13 November |
| Edition | 52nd |
| Category | ATP Tour 250 series |
| Draw | 28S / 16D |
| Prize money | €635,750 |
| Surface | Hard (indoor) |
| Location | Stockholm, Sweden |
| Venue | Kungliga tennishallen[1] |
| Champions | |
| Singles | |
 Tommy Paul | |
| Doubles | |
 Santiago González /  Andrés Molteni | |
The 2021 Stockholm Open was a professional men's tennis tournament played on indoor hard courts. It was the 52nd edition of the tournament, and part of the ATP Tour 250 series of the 2021 ATP Tour. It took place at the Kungliga tennishallen in Stockholm, Sweden from 7 to 13 November 2021. Unseeded Tommy Paul won the singles title.[2]
- ^ "Stockholm: where tennis royalty has found regular success". 19 October 2020.
- ^ "Intrum Stockholm Open Overview". Association of Tennis Professionals (ATP).