# 2011 Open de Nice Côte d'Azur – Singles

Richard Gasquet was the defending champion, but chose not to compete in this year.
No.3 seed Nicolás Almagro won the tournament by defeating Romanian Victor Hănescu 6–7$^{(5–7)}$, 6–3, 6–3 in the final. It was the 10th ATP Tournament won by Nicolás Almagro in his career.

## Seeds

The top four seeds received a bye into the second round.
* David Ferrer (quarterfinals)
* Tomáš Berdych (semifinals)
* Nicolás Almagro (champion)
* Andy Roddick (withdrew due to shoulder injury)
* Alexandr Dolgopolov (semifinals)
* Marcos Baghdatis (first round)
* Sergiy Stakhovsky (second round)
* Fabio Fognini (first round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 5 | Alexandr Dolgopolov | 3 | 3 | | | | | |
| | Victor Hănescu | 6 | 6 | | | | | |
| | Victor Hănescu | 6 | 6 | | Victor Hănescu | 7 | 3 | 3 |
| | | | | 3 | Nicolás Almagro | 6$^5$ | 6 | 6 |
| 3 | Nicolás Almagro | 6 | 6 | 3 | Nicolás Almagro | 6$^5$ | 6 | 6 |
| 2 | Tomáš Berdych | 4 | 4 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | D Ferrer | 6 | 6 | | | | | | | | | |
| WC | É Roger-Vasselin | 6 | 3 | 2 | | A Seppi | 3 | 2 | | | | | | | | | |
| | A Seppi | 3 | 6 | 6 | | | | | 1 | D Ferrer | 4 | 6 | 5 | | | | |
| Q | P Riba | 6 | 6 | | | | | | 5 | A Dolgopolov | 6 | 1 | 7 | | | | |
| Q | G Rufin | 2 | 2 | | Q | P Riba | 6$^5$ | 6$^5$ | | | | | | | | | |
| | F Volandri | 5 | 3 | | 5 | A Dolgopolov | 7 | 7 | | | | | | | | | |
| 5 | A Dolgopolov | 7 | 6 | | | | | | | | | | | 5 | A Dolgopolov | 3 | 3 |
| | | | | | | | | | | | | | | | V Hănescu | 6 | 6 |
| | | | | | LL | M Russell | 5 | 2 | | | | | | | | | |
| Q | B Paire | 0 | 1 | | | V Hănescu | 7 | 6 | | | | | | | | | |
| | V Hănescu | 6 | 6 | | | | | | | V Hănescu | 6 | 2 | | | | | |
| | Y-h Lu | 3 | 4 | | | | | | LL | R Haase | 2 | 0$^r$ | | | | | |
| LL | R Haase | 6 | 6 | | LL | R Haase | 6 | 6 | | | | | | | | | |
| | T Gabashvili | 6$^5$ | 3 | | 7 | S Stakhovsky | 2 | 4 | | | | | | | | | |
| 7 | S Stakhovsky | 7 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | M Baghdatis | 6$^3$ | 2 | | | | | | | | | | | | | | |
| WC | J Benneteau | 7 | 6 | | WC | J Benneteau | 3 | 4 | | | | | | | | | |
| | P Andújar | 5 | | | | P Andújar | 6 | 6 | | | | | | | | | |
| | G Dimitrov | 0$^r$ | | | | | | | | | P Andújar | 1 | 4 | | | | |
| Q | A Haider-Maurer | 7 | 3 | 0 | | | | | | 3 | N Almagro | 6 | 6 | | | | |
| | C Berlocq | 5 | 6 | 6 | | C Berlocq | 7 | 4 | 3 | | | | | | | | |
| | | | | | 3 | N Almagro | 6$^5$ | 6 | 6 | | | | | | | | |
| | | | | | | | | | | | | | | 3 | N Almagro | 6 | 6 |
| 8 | F Fognini | 6 | 3 | 3 | | | | | | | | | | 2 | T Berdych | 4 | 4 |
| WC | E Gulbis | 3 | 6 | 6 | WC | E Gulbis | 6 | 4 | 6 | | | | | | | | |
| | O Rochus | 2 | 6$^5$ | | | D Istomin | 3 | 6 | 3 | | | | | | | | |
| | D Istomin | 6 | 7 | | | | | | | WC | E Gulbis | 1 | 4 | | | | |
| | S Devvarman | 3 | 6$^7$ | | | | | | | 2 | T Berdych | 6 | 6 | | | | |
| | A Mannarino | 6 | 7 | | | A Mannarino | 1 | 4 | | | | | | | | | |
| | | | | | 2 | T Berdych | 6 | 6 | | | | | | | | | |