| Conflict: | Battle of the Berlengas |
| Partof: | the Portuguese Restoration War |
| Date: | 28 June to 1 July 1666 |
| Place: | Berlengas, Portugal |
| Result: | Spanish victory[1] |
| Combatant2: | Portugal |
| Combatant1: | Spain |
| Commander2: | António Pessoa |
| Commander1: | Diego Ibarra |
| Strength2: | 28[2] |
| Strength1: | 1,500 15 warships[3] |
| Casualties2: | 5 killed and wounded 23 captured |
| Casualties1: | 41 killed and wounded[4] |
The Battle of Berlengas was fought in 1666 during the Portuguese Restoration War, between the Portuguese defenders of the Fort São João Baptista and a Spanish fleet commanded by Diego de Ibarra. The fleet, which had destroyed Portuguese fisheries, bombarded towns and cut off supplies in one month as part of its onslaught, proceeded to storm the fort on the Berlengas.[5] The fort was destroyed and the entire garrison were captured.[6]
After the attack the repair of the fort was initiated, being concluded in 1678 by João de Mascarenhas, 1st Marquess of Fronteira.