Mariano Puerta was the defending champion, but did not participate this year.
Daniele Bracciali defeated Nicolás Massú 6–1, 6–4, to win the 2006 Grand Prix Hassan II singles event.
Seeds
Nicolás Massú (final) Luis Horna (quarterfinals) Christophe Rochus (quarterfinals) Andreas Seppi (first round) Arnaud Clément (second round) Jürgen Melzer (second round) Daniele Bracciali (champion) Gilles Simon (semifinals)
Draw
Finals
Top half
Bottom half
External links 2006 Grand Prix Hassan II Draw 2006 Grand Prix Hassan II Qualifying draw