The 2011 Brasil Open was a tennis tournament played on outdoor clay courts. It was the 11th edition of the event known as the Brasil Open, and was part of the ATP World Tour 250 series of the 2011 ATP World Tour. It took place in Costa do Sauípe, Brazil, from February 7 through February 13, 2011.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Spain | Nicolás Almagro | 13 | 1 | |
| Spain | Albert Montañés | 26 | 2 | |
 Brazil | Thomaz Bellucci | 31 | 3 | |
 Ukraine | Alexandr Dolgopolov | 32 | 4 | |
 Argentina | Juan Ignacio Chela | 39 | 5 | |
| Spain | Tommy Robredo | 40 | 6 | |
 Italy | Potito Starace | 49 | 7 | |
 Romania | Victor Hănescu | 53 | 8 |
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
See main article: 2011 Brasil Open – singles qualifying.
See main article: 2011 Brasil Open – Singles. Nicolás Almagro def. Alexandr Dolgopolov, 6–3, 7–6(3).
See main article: 2011 Brasil Open – Doubles. Marcelo Melo / Bruno Soares def. Pablo Andújar / Daniel Gimeno Traver, 7–6(4), 6–3.