2011 Serbia Open
The 2011 Serbia Open (also known as Serbia Open 2011 powered by Telekom Srbija for sponsorship reasons) was a men's tennis tournament played on outdoor clay courts. The third edition of the event hosted by current Serbian player Novak Djokovic, it was part of the ATP World Tour 250 series of the 2011 ATP World Tour. It took place at the Tennis Center Novak complex in Belgrade, Serbia, from April 23 through May 1. Sam Querrey was the defending champion but hasn't entered this year.
| 2011 Serbia Open | |
|---|---|
 | |
| Date | April 23 – May 1 |
| Edition | 3rd |
| Category | ATP World Tour 250 |
| Surface | Clay |
| Location | Belgrade, Serbia |
| Champions | |
| Singles | |
 | |
| Doubles | |
  | |
Entrants
Seeds
| Country | Player | Rank1 | Seed |
|---|---|---|---|
|
Novak Djokovic | 2 | 1 |
|
Viktor Troicki | 16 | 2 |
 |
Albert Montañés | 26 | 3 |
|
Guillermo García-López | 27 | 4 |
 |
John Isner | 29 | 5 |
 |
Ernests Gulbis | 31 | 6 |
|
Janko Tipsarević | 36 | 7 |
 |
Juan Mónaco | 37 | 8 |
- Seedings are based on the rankings of April 18, 2011.
Other entrants
The following players received wildcards into the main draw:
The following players received special exempts into the main draw:
The following players received entry from the qualifying draw:
Champions
Singles
- It was Djokovic's 5th title of the year and 23rd of his career. It was his 2nd win at Belgrade, also winning in 2009. The win in the final marked Djokovic's 29th consecutive win.
Doubles
