2005 ATP Buenos Aires – Doubles

Lucas Arnold and Mariano Hood were the defending champions, but lost in the semifinals this year.

František Čermák and Leoš Friedl won the title, defeating José Acasuso and Sebastián Prieto 6–2, 7–5 in the final.

Seeds

 * 1) 🇦🇷 Gastón Etlis / 🇦🇷 Martín Rodríguez (first round)
 * 2) 🇦🇷 Lucas Arnold / 🇦🇷 Mariano Hood (semifinals)
 * 3) 🇨🇿 František Čermák / 🇨🇿 Leoš Friedl (champions)
 * 4) 🇵🇱 Mariusz Fyrstenberg / 🇵🇱 Marcin Matkowski (quarterfinals)