The Rivière de Cayenne (, "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 long, including its upper course Rivière des Cascades.
The river featured prominently in both the movie and the book 'Papillon' by Henri Charrière.
See also
- List of rivers of French Guiana
- List of rivers of the Americas by coastline