| Champ: |  Rafael Nadal |
| Runner: |  David Nalbandian |
| Score: | 6–2, 6–3 |
| Type: | singles doubles |
See main article: 2013 Brasil Open.
Rafael Nadal defeated David Nalbandian in the final, 6–2, 6–3 to win the singles tennis title at the 2013 Brasil Open.
Nicolás Almagro was the two-time defending champion, but lost in the quarterfinals to Nalbandian.