2011 Aberto Santa Catarina de Tenis – Singles

Marcos Daniel was the defending champion, but lost to Ricardo Hocevar 6–7(3–7), 1–6 in the first round. José Acasuso defeated Marcelo Demoliner 6–2, 6–2 in the final.

Seeds
• # 🇧🇷 Ricardo Mello (first round)

• # 🇧🇷 Marcos Daniel (first round)

• # 🇧🇷 João Souza (first round)

• # 🇫🇷 Éric Prodon (quarterfinals)

• # 🇦🇷 Diego Junqueira (semifinals)

• # 🇦🇷 Leonardo Mayer (quarterfinals)

• # 🇯🇵 Tatsuma Ito (first round)

• # 🇪🇨 Giovanni Lapentti (second round, retired)