2005 Mercedes Cup – Doubles

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.

José Acasuso and Sebastián Prieto won the title by defeating Mariano Hood and Tommy Robredo 7–6(7–4), 6–3 in the final.

Seeds
• # 🇮🇳 Mahesh Bhupathi / 🇨🇿 Martin Damm (quarterfinals)

• # 🇨🇿 František Čermák / 🇨🇿 Leoš Friedl (quarterfinals, withdrew due to a thumb injury on Čermák)

• # 🇨🇿 Cyril Suk / 🇨🇿 Pavel Vízner (quarterfinals)

• # 🇦🇹 Julian Knowle / 🇦🇹 Jürgen Melzer (quarterfinals)