2013 Aberto de Tênis do Rio Grande do Sul – Singles

Simon Greul was the defending champion, but chose not to compete.

Facundo Argüello won the title, defeating Máximo González in the final, 6–4, 6–1.

Seeds
• # 🇦🇷 Guido Pella (second round)

• # Blaž Kavčič (first round)

• # Thiemo de Bakker (first round)

• # 🇦🇷 Martín Alund (second round)

• # 🇧🇷 Rogério Dutra da Silva (second round)

• # Gastão Elias (first round)

• # 🇧🇷 João Souza (second round)

• # Paul Capdeville (second round)