2005 Estoril Open – Men's doubles

Juan Ignacio Chela and Gastón Gaudio were the defending champions. Chela participated with Tommy Robredo this year, finishing runner-up. Gaudio did not participate this year.

František Čermák and Leoš Friedl won in the final 6–3, 6–4, against Juan Ignacio Chela and Tommy Robredo.

Seeds
• # 🇸🇪 Simon Aspelin / 🇦🇺 Todd Perry (semifinals)

• # 🇦🇷 Gastón Etlis / 🇦🇷 Martin Rodríguez (first round)

• # 🇨🇿 František Čermák / 🇨🇿 Leoš Friedl (champions)

• # 🇨🇿 Jiří Novák / 🇨🇿 Petr Pála (first round)