| Doubles | |
|---|---|
| 2003 Grand Prix Hassan II | |
| Champions |  František Čermák Leoš Friedl |
| Runners-up |  Devin Bowen  Ashley Fisher |
| Final score | 6–3, 7–5 |
Stephen Huss and Myles Wakefield were the defending champions but did not compete that year.
František Čermák and Leoš Friedl won in the final 6–3, 7–5 against Devin Bowen and Ashley Fisher.
Chris Haggard / Robbie Koenig (quarterfinals) František Čermák / Leoš Friedl (champions) Jared Palmer / Jeff Tarango (quarterfinals) Petr Luxa / David Škoch (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | C Haggard R Koenig | 6 | 1 | 6 | |||||||||||||||||||||||
 A Clément O Mutis | 1 | 6 | 3 | 1 | C Haggard R Koenig | 4 | 4 | ||||||||||||||||||||
 J Knowle  M Kohlmann | 6 | 6 | J Knowle M Kohlmann | 6 | 6 | ||||||||||||||||||||||
 E Artoni  L Horna | 4 | 1 | J Knowle M Kohlmann | 4 | 4 | ||||||||||||||||||||||
| 4 | P Luxa D Škoch | 3 | 6 | 1 | D Bowen A Fisher | 6 | 6 | ||||||||||||||||||||
| D Bowen A Fisher | 6 | 3 | 6 | D Bowen A Fisher | 4 | 77 | 6 | ||||||||||||||||||||
| WC |  K Alami H Arazi | 6 | 3 | 77 | WC | K Alami H Arazi | 6 | 62 | 2 | ||||||||||||||||||
D Sanguinetti  S Sargsian | 2 | 6 | 63 | D Bowen A Fisher | 3 | 5 | |||||||||||||||||||||
 S Aspelin  D Hrbatý | 0 | 4 | 2 | F Čermák L Friedl | 6 | 7 | |||||||||||||||||||||
 S Prieto  A Sá | 6 | 6 | S Prieto A Sá | 6 | 77 | ||||||||||||||||||||||
| M Bertolini A Schneiter | 4 | 1 | 3 | J Palmer J Tarango | 3 | 63 | |||||||||||||||||||||
| 3 | J Palmer J Tarango | 6 | 6 | S Prieto A Sá | 4 | 4 | |||||||||||||||||||||
| WC | M Dakki M El Aarej | 2 | 4 | 2 | F Čermák L Friedl | 6 | 6 | ||||||||||||||||||||
| ALT | F Meligeni F Saretta | 6 | 6 | ALT | F Meligeni F Saretta | 4 | 6 | 2 | |||||||||||||||||||
 A Portas F Vicente | 60 | 2 | 2 | F Čermák L Friedl | 6 | 2 | 6 | ||||||||||||||||||||
| 2 | F Čermák L Friedl | 77 | 6 | ||||||||||||||||||||||||
František Čermák and Leoš Friedl were the defending champions, but Čermák chose not to participate, and only Friedl competed that year.
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František Čermák and Leoš Friedl were the defending champions, but lost in the quarterfinals to Gustavo Kuerten and André Sá.
Mahesh Bhupathi and Leander Paes were the defending champions but they competed with different partners that year, Bhupathi with Todd Woodbridge and Paes with David Rikl.
Jonas Björkman and Todd Woodbridge were the defending champions but lost in the second round to František Čermák and Leoš Friedl.
Martin Damm and Cyril Suk were the defending champions and won in the final 7–5, 7–6(7–4) against Donald Johnson and Leander Paes.
Roger Federer and Max Mirnyi were the defending champions but only Mirnyi competed that year with Mahesh Bhupathi.
David Adams and Jared Palmer were the defending champions but did not compete that year.
Mahesh Bhupathi and Max Mirnyi were the defending champions but did not compete that year.
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Enzo Artoni and Fernando Vicente were the defending champions. Artoni partnered with Marcin Matkowski this year, losing in the quarterfinals. Vicente did not participate.
František Čermák and Leoš Friedl were the defending champions, but did not participate this year.
Leander Paes and David Rikl were the two-time defending champions, but did not participate this year. Rikl was also the three-time defending champion, having won the title with Joshua Eagle in 2002.
František Čermák and Leoš Friedl were the defending champions.
Lucas Arnold and Mariano Hood were the defending champions, but lost in the semifinals this year.
Mariusz Fyrstenberg and Marcin Matkowski were the defending champions, but declined to participate to focus for the 2004 Summer Olympics.
Mariusz Fyrstenberg and Marcin Matkowski were the defending champions, but lost in the first round.
František Čermák and Leoš Friedl were the defending champions, but Čermák did not compete this year. Friedl teamed up with Andrei Pavel and successfully defended his title, by defeating Christophe Rochus and Olivier Rochus 6–2, 6–7(5–7), 6–0 in the final.
Jiří Novák and Radek Štěpánek were the defending champions, but Štěpánek did not compete this year. Novák teamed up with Petr Pála and lost in the first round to František Čermák and Leoš Friedl.
Martin Damm and Cyril Suk were the defending champions, but lost in the semifinals to Lucas Arnold Ker and Martín García.