| Date: | 31 December 2012 – 6 January 2013 |
| Edition: | 13th |
| Draw: | 32S / 16D |
| Surface: | Hard |
| Location: | São Paulo, Brazil |
| Prize Money: | $125,000 |
| Champs: |  Horacio Zeballos |
| Champd: |  James Cerretani /  Adil Shamasdin |
The 2013 Aberto de São Paulo was a professional tennis tournament played on hard courts. It was the 13th edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in São Paulo, Brazil between 31 December 2012 and 6 January 2013.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Argentina | Horacio Zeballos | 85 | 1 | |
| Argentina | Martín Alund | 121 | 2 | |
 Brazil | Rogério Dutra da Silva | 126 | 3 | |
| Brazil | Thiago Alves | 130 | 4 | |
| Argentina | Federico Delbonis | 133 | 5 | |
| Gastão Elias | 130 | 6 | ||
| Brazil | João Souza | 144 | 7 | |
| Argentina | Guido Andreozzi | 17§ | 8 |
The following players received wildcards into the singles main draw:
Rafael Camilo Daniel Dutra da Silva Tiago Lopes Thiago MonteiroThe following players received entry from the qualifying draw:
| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| James Cerretani | Canada | Adil Shamasdin | 175 | 1 | ||
 Australia | Rameez Junaid | Simon Stadler | 185 | 2 | ||
| Brazil | André Ghem | Brazil | João Souza | 241 | 3 | |
| Rik de Voest | Brazil | Marcelo Demoliner | 247 | 4 |
The following pairs received wildcards into the doubles main draw:
Rafael Camilo / Daniel Dutra da Silva Rogério Dutra da Silva / Eduardo Russi Ricardo Hocevar / Leonardo KircheSee main article: 2013 Aberto de São Paulo – Singles.
Horacio Zeballos def. Rogério Dutra da Silva, 7–6(7–5), 6–2[1]See main article: 2013 Aberto de São Paulo – Doubles.
James Cerretani / Adil Shamasdin def. Federico Delbonis / Renzo Olivo, 6–7(5–7), 6–1, [11–9][2]