The 2016 Stockholm Open (also known as the 2016 If Stockholm Open due to sponsorship) was a professional men's tennis tournament played on indoor hard courts. It was the 48th edition of the tournament, and part of the ATP World Tour 250 series of the 2016 ATP World Tour. It took place at the Kungliga tennishallen in Stockholm, Sweden from 17 October until 23 October 2016. Unseeded Juan Martín del Potro, who entered the main draw on a wildcard, won the singles title.[1]
See main article: 2016 Stockholm Open – Singles.
Juan Martín del Potro defeated 
Jack Sock, 7–5, 6–1See main article: 2016 Stockholm Open – Doubles.
Elias Ymer / Mikael Ymer defeated Mate Pavić / 
Michael Venus, 6–1, 6–1| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 France | Gaël Monfils | 8 | 1 | |
| Grigor Dimitrov | 18 | 2 | ||
| Ivo Karlović | 20 | 3 | ||
| Alexander Zverev | 21 | 4 | ||
| Steve Johnson | 24 | 5 | ||
| Jack Sock | 25 | 6 | ||
| John Isner | 26 | 7 | ||
 Cyprus | Marcos Baghdatis | 36 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Daniel Evans →replaced by 
Yūichi Sugita Lucas Pouille →replaced by Dustin Brown| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
 Brazil | Marcelo Melo | Brazil | Bruno Soares | 9 | 1 | |
 India | Rohan Boppana | Treat Huey | 43 | 2 | ||
 Poland | Marcin Matkowski | Jean-Julien Rojer | 43 | 3 | ||
| Mate Pavić | New Zealand | Michael Venus | 72 | 4 |
The following pairs received wildcards into the doubles main draw:
