2011 Movistar Open – Singles

Thomaz Bellucci was the defending champion, but lost to Fabio Fognini in the quarterfinals.

Tommy Robredo won the title, defeating Santiago Giraldo 6–2, 2–6, 7–6(7–5), in the final.

Seeds

 * 1) 🇦🇷 David Nalbandian (second round)
 * 2) 🇦🇷 Juan Mónaco (first round)
 * 3) 🇧🇷 Thomaz Bellucci (quarterfinals)
 * 4) 🇦🇷 Juan Ignacio Chela (quarterfinals)
 * 5) 🇮🇹 Potito Starace (semifinals)
 * 6) 🇪🇸 Tommy Robredo (champion)
 * 7) 🇮🇹 Fabio Fognini (semifinals)
 * 8) 🇨🇴 Santiago Giraldo (final)

Seeds
• # 🇪🇸 Daniel Muñoz de la Nava (second round)

• # 🇧🇷 Rogério Dutra Silva (first round)

• # 🇦🇷 Juan Pablo Brzezicki (qualifying competition)

• # 🇪🇸 Iván Navarro (qualifying competition)

• # Jorge Aguilar (qualified)

• # Leonardo Tavares (second round)

• # 🇧🇷 Ricardo Hocevar (qualified)

• # 🇦🇷 Facundo Bagnis (qualified)

Qualifiers
• # Jorge Aguilar

• # 🇧🇷 Ricardo Hocevar

• # 🇦🇷 Facundo Bagnis

• # 🇧🇷 Caio Zampieri