| Champ: |  Rafael Nadal |
| Runner: | Alberto Martín |
| Score: | 6–0, 6–7(2–7), 6–1 |
| Type: | singles doubles |
See main article: 2005 Brasil Open.
Gustavo Kuerten was the defending champion, but chose not to participate that year.
Rafael Nadal won in the final 6–0, 6–7(2–7), 6–1, against Alberto Martín.