2021 Stockholm Open


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 (tennis)|Tommy Paul] won the singles title.

Finals

Singles

Paul won his first ATP Tour title.

Doubles

Singles main-draw entrants

Seeds

Other entrants

The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:

Withdrawals

;Before the tournament

Doubles main-draw entrants

Seeds

Other entrants

The following pairs received wildcards into the doubles main draw:
The following pairs received entry into the doubles main draw as alternates:

Withdrawals

;Before the tournament