Olho d'Água do Casado

Olho d'Água do Casado is a municipality located in the western of the Brazilian state of Alagoas. Its population is 9,441 (2020) and its area is 323 km2.

The municipality holds part of the 26736 ha Rio São Francisco Natural Monument, which protects the spectacular canyons of the São Francisco River between the Paulo Afonso Hydroelectric Complex and the Xingó Dam.