| Castle of Alcantarilha | |
|---|---|
Castelo de Alcantarilha | |
| Faro, Algarve, Algarve in Portugal | |
 Part of the wall of Alcantarilha's Castle | |
| Coordinates | 37°7′48.09″N 8°20′42.95″W / 37.1300250°N 8.3452639°W |
| Type | Castle |
| Site information | |
| Owner | Portuguese Republic |
| Operator | Câmara Municipal de Silves |
| Open to the public | Public |
| Site history | |
| Built | 198 A.D. |
The Castle of Alcantarilha is a medieval fortress and its remnant walls in Portugal, in the civil parish of Alcantarilha, municipality of Silves, in the Portuguese Algarve region of southwestern Iberia. It is a little-known monument, now in ruins, used for the protection of the people of the village and surrounding area from attacks by north African pirates.