Manguaba Lagoon (Portuguese Lagoa Manguaba) is an estuarine lagoon in Alagoas state of northeastern Brazil. Manguaba Lagoon receives the Paraíba do Meio River, and is connected to the Atlantic Ocean to the east and Mundaú Lagoon to the north by a network of channels.

Manguaba Lagoon
Location in Brazil
Location in Brazil
Manguaba Lagoon
Location in Brazil
LocationAlagoas, Brazil
TypeEstuarine lagoon
Primary inflowsParaíba do Meio River
Primary outflowsAtlantic Ocean (east), Mundaú Lagoon (north)
Basin countriesBrazil

9°40′59″S 35°54′00″W / 9.683°S 35.900°W / -9.683; -35.900