2003 Grand Prix Hassan II
Date	7–13 April
Edition	19th
Category	International Series
Surface	Caly / outdoor
Location	Casablanca, Morocco
Venue	Complexe Al Amal
Champions
Singles
Julien Boutter
Doubles
František Čermák / Leoš Friedl
← 2002 · Grand Prix Hassan II · 2004 →

The 2003 Grand Prix Hassan II was a tennis tournament played on outdoor clay courts at the Complexe Al Amal in Casablanca in Morocco and was part of the International Series of the 2003 ATP Tour. It was the 19th edition of the tournament and was held from 7 April through 13 April 2003. Unseeded Julien Boutter won the singles title.

Finals

Singles

Julien Boutter defeated Younes El Aynaoui 6–2, 2–6, 6–1

• It was Boutter's only title of the year and the 5th of his career.

Doubles

František Čermák / Leoš Friedl defeated Devin Bowen / Ashley Fisher 6–3, 7–5

• It was Čermák's only title of the year and the 3rd of his career. It was Friedl's only title of the year and the 3rd of his career.