Açude Pilões is a reservoir located in the municipality of São João do Rio do Peixe, in the western region of Paraíba, Brazil. It sits on the Rio do Peixe and holds a capacity of approximately 7,888,854 cubic meters, making it one of the mid-to-large reservoirs in the state's network of public water storage infrastructure. Like many açudes throughout the semi-arid Paraíba interior, it serves as a vital water resource for the surrounding region while also providing fishing opportunities for local communities and visiting anglers. The reservoir is part of the broader landscape of the sertão, characterized by the dry caatinga biome, where seasonal rainfall patterns heavily influence water levels and fishing conditions throughout the year.