Paul Rivet (7 May 1876, Wasigny, Ardennes – 21 March 1958) was a French ethnologist known for founding the Musée de l'Homme in 1937. In his professional work, Rivet is known for his theory that South America was originally populated in part by migrants who sailed there from Australia and Melanesia. He married Mercedes Andrade Chiriboga, who was from Cuenca, Ecuador.