2005 Ordina Open – Men's singles

Michaël Llodra was the defending champion, but lost in the final this year.

Mario Ančić won the title, beating Llodra 7–5, 6–4 in the final.

Seeds
• # 🇪🇸 Tommy Robredo (second round)

• # 🇦🇷 Guillermo Coria (second round)

• # Mario Ančić (champion)

• # 🇩🇪 Tommy Haas (withdrew because of a right thigh injury)

• # 🇸🇪 Robin Söderling (second round)

• # 🇷🇴 Andrei Pavel (first round)

• # 🇧🇪 Christophe Rochus (first round)

• # 🇫🇷 Paul-Henri Mathieu (second round)

• # 🇮🇹 Davide Sanguinetti (quarterfinals)