| Jacuípe River | |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location of mouth |
| Source1 Location: | Alagoas state |
| Mouth Location: | Maceió |
| Mouth: | Mundaú Lagoon |
| Subdivision Type1: | Country |
| Subdivision Name1: | Brazil |
| Subdivision Type2: | State |
| Subdivision Name2: | Pernambuco, Alagoas |
The Mundaú River is a river in northeastern Brazil. The Mundaú originates in the Borborema Plateau of Pernambuco state, and flows southeast through Pernambuco and Alagoas states to empty into the Mundaú Lagoon at Maceió, Alagoas' capital. Mundaú Lagoon is an estuary, connected to the Atlantic Ocean and Manguaba Lagoon to the south by a network of channels.