The 2011 Open de Nice Côte d'Azur was a men's tennis tournament play on outdoor clay courts. It was the 27th edition of the Open de Nice Côte d'Azur and was part of the ATP World Tour 250 series of the 2011 ATP World Tour. It took place at the Nice Lawn Tennis Club in Nice, France, from 16 May through 21 May 2011. Third-seeded Nicolás Almagro won the singles title.
Finals
Singles
Nicolás Almagro defeated Victor Hănescu, 6–7(5–7), 6–3, 6–3
It was the 10th ATP Tournament won by Nicolás Almagro in his career.
Doubles
Eric Butorac / Jean-Julien Rojer defeated Santiago González / David Marrero, 6–3, 6–4
Entrants
Seeds
Seedings as of May 9, 2011.
Other entrants
The following players received wildcards into the main draw: Julien Benneteau Ernests Gulbis Édouard Roger-Vasselin
The following players received entry from the qualifying draw:
Andreas Haider-Maurer
Benoît Paire
Pere Riba
Guillaume Rufin
The following players received entry from a lucky loser spot: Robin Haase Michael Russell
Withdrawals
Andy Roddick (right shoulder injury) Pablo Cuevas (leg injury)