| Conflict: | Battle of Rio de Janeiro |
| Partof: | France Antarctique |
| Date: | 20 January 1567 |
| Place: | Rio de Janeiro, Brazil |
| Result: | Portuguese victory |
| Combatant1: | Portuguese Empire |
| Commander1: | Estácio de Sá |
| Combatant2: | Kingdom of France Tamoyo allies |
| Commander2: | Unknown |
| Strength1: | Unknown |
| Strength2: | Unknown |
| Casualties2: | Unknown |
| Casualties1: | Unknown |
The Battle of Rio de Janeiro or the Battle of Guanabara Bay took place on 20 January 1567 at Rio de Janeiro that ended with the definitive defeat of the French. Specifically, the battle was an attack on the fortification of Uruçú-mirim. The Portuguese commander, Estácio de Sá, was hit by an arrow which perforated his eye, and died on 20 February.[1]