The 2011 Grand Prix Hassan II was a men's tennis tournament played on outdoor clay courts.

It was the 27th edition of the Grand Prix Hassan II, and an World Tour 250 event on the 2011 ATP World Tour.

It took place at the Complexe Al Amal in Casablanca, Morocco, from 4 April until 10 April 2011.

Unseeded Pablo Andújar won the singles title.

The following players received wildcards into the main draw: The following players received entry via qualifying: Pablo Andújar defeated Potito Starace, 6–1, 6–2 Robert Lindstedt / Horia Tecău defeated Colin Fleming / Igor Zelenay, 6–2, 6–1