2012 Aberto de Tênis do Rio Grande do Sul – Singles

Simon Greul defeated Gastão Elias 2–6, 7–6(7–5), 7–5 in the final to win the title.

Seeds
• # 🇪🇸 Rubén Ramírez Hidalgo (semifinals)

• # 🇦🇹 Andreas Haider-Maurer (first round)

• # João Sousa (first round)

• # 🇷🇴 Adrian Ungur (first round)

• # 🇦🇷 Guido Pella (second round)

• # 🇧🇷 Thiago Alves (quarterfinals)

• # Thiemo de Bakker (second round)

• # 🇧🇷 João Souza (first round)