2003 Qatar Open – Singles

Younes El Aynaoui was the defending champion but lost in the semifinals to Stefan Koubek.

Koubek won in the final 6–4, 6–4 against Jan-Michael Gambill.

Seeds

 * 1)  Roger Federer (quarterfinals)
 * 2) 🇪🇸 Albert Costa (second round)
 * 3) 🇲🇦 Younes El Aynaoui (semifinals)
 * 4) 🇷🇺 Yevgeny Kafelnikov (first round)
 * 5) 🇬🇧 Greg Rusedski (withdrew)
 * 6) 🇷🇺 Mikhail Youzhny (semifinals)
 * 7) 🇫🇷 Nicolas Escudé (first round)
 * 8) 🇫🇷 Fabrice Santoro (quarterfinals)
 * 9) 🇺🇸 Jan-Michael Gambill (final)