2015 Challenger ATP Cachantún Cup – Doubles

Christian Garin and Nicolás Jarry were the defending champions, but did not play together. Garin partnered with Julio Peralta and lost in the first round. Jarry partnered with Marcelo Demoliner and lost in the second round.

Seeds
• # 🇦🇷 Andrés Molteni / 🇦🇷 Guido Pella (champions)

• # 🇧🇷 Marcelo Demoliner / Nicolás Jarry (second round)

• # 🇦🇷 Facundo Bagnis / 🇵🇪 Sergio Galdós (first round)

• # Ariel Behar / 🇦🇷 Horacio Zeballos (first round)