Piriá River (Pará River tributary)

The Piriá River is a river of Pará state in northeastern Brazil, a tributary of the Pará River.

The river is on the island of Marajó to the northwest of Belém in the delta region where the Amazon and Tocantins rivers empty into the Atlantic Ocean. It runs through part of the 194868 ha Terra Grande-Pracuúba Extractive Reserve, a sustainable use conservation unit created in 2006. It flows south into the Pará River, which connects the Amazon River to the Tocantins River.