The Rivière de Cayenne (French pronunciation: [ʁivjɛʁ də kajɛn], "Cayenne River") is a river in French Guiana, formed by the Rivière des Cascades, Tonnegrande, and Montsinéry River.

It flows into the Atlantic Ocean near the city of Cayenne, forming an estuary about 2 km long.

It is 43.7 km (27.2 mi) long, including its upper course Rivière des Cascades.

[1][2] The river featured prominently in both the movie and the book Papillon by Henri Charrière.

This article related to a river in French Guiana is a stub.