2004 Qatar Open – Singles

Stefan Koubek was the defending champion but lost in the second round to Hyung-Taik Lee.

Nicolas Escudé won in the final 6–3, 7–6(7–4) against Ivan Ljubičić.

Seeds

 * 1) 🇺🇸 Andy Roddick (second round)
 * 2) 🇩🇪 Rainer Schüttler (first round)
 * 3) 🇦🇺 Mark Philippoussis (first round)
 * 4) 🇫🇷 Sébastien Grosjean (quarterfinals)
 * 5)  Nicolás Massú (first round)
 * 6) 🇲🇦 Younes El Aynaoui (first round)
 * 7) 🇬🇧 Tim Henman (semifinals)
 * 8) 🇦🇷 Agustín Calleri (semifinals)