2011 Cachantún Cup – Doubles

Sebastián Prieto and Horacio Zeballos were the defending champions from the last edition of the tournament in 2009, but only Zeballos chose to defend his title.

He played alongside Máximo González. They won the title, defeating Guillermo Rivera-Aránguiz and Cristóbal Saavedra-Corvalán 6–3, 6–4 in the final.

Seeds
• # 🇦🇷 Máximo González / 🇦🇷 Horacio Zeballos (champions)

• # 🇧🇷 Rogério Dutra da Silva / 🇧🇷 João Souza (withdrew)

• # 🇧🇷 Júlio Silva / 🇧🇷 Caio Zampieri (withdrew)

• # 🇦🇷 Diego Junqueira / 🇦🇷 Martín Vassallo Argüello (quarterfinals)