The Baía de São José is a bay of the Atlantic Ocean in Maranhão state of northeastern Brazil.
The bay is an estuary which receives several rivers, including the Itapecuru and Munim.
São Luís Island, also known as Maranhão Island, separates the Baía de São José from the Baía de São Marcos just to the west. São Luís Island is home to São Luís, Maranhão's capital.
This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press.
Coordinates: 2°38′S 44°04′W / 2.633°S 44.067°W