The 2011 Aberto de São Paulo was a professional tennis tournament played on hard courts. It was the eleventh edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in São Paulo, Brazil between 3 and 9 January 2011.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Brazil | Ricardo Mello | 76 | 1 | |
 Argentina | Horacio Zeballos | 110 | 2 | |
| Brazil | João Souza | 111 | 3 | |
| Argentina | Máximo González | 141 | 4 | |
| Brazil | Thiago Alves | 150 | 5 | |
| Brazil | Rogério Dutra da Silva | 158 | 6 | |
| Argentina | Federico Delbonis | 160 | 7 | |
| Paul Capdeville | 165 | 8 |
The following players received wildcards into the singles main draw:
Daniel Dutra da Silva
Christian Lindell Tiago Lopes Fernando RomboliThe following players received entry from the qualifying draw:
Rafael Camilo Henrique Cunha André GhemSee main article: 2011 Prime Cup Aberto de São Paulo – Singles. Ricardo Mello def. Rafael Camilo, 6–2, 6–1
See main article: 2011 Prime Cup Aberto de São Paulo – Doubles. Franco Ferreiro / André Sá def. 
Santiago González / Horacio Zeballos, 7–5, 7–6(12)