The 2006 Grand Prix Hassan II was a men's Association of Tennis Professionals tennis tournament held in Casablanca, Morocco.

It was the 22nd edition of the tournament and was held from 24 April until 1 May 2006.

Seventh-seeded Daniele Bracciali won the singles title.

Daniele Bracciali defeated Nicolás Massú 6–1, 6–4 Julian Knowle / Jürgen Melzer defeated Michael Kohlmann / Alexander Waske 6–3, 6–4