René Léon Bourret (28 January 1884, Nérac, (Lot-et-Garonne) – 28 July 1957) was a French herpetologist and geologist.
From 1919 to 1925, he performed geological surveys in Indochina, becoming a professor in 1925 at the École Supérieure des Sciences, Université Indochinoise in Hanoi.
Two years later, he released his first zoological publication, a general review on vertebrates native to Indochina.
During the ensuing years, he published three major works on herpetofauna native to Indochina: monographs on snakes (1936), chelonians (1941), and amphibians (1942).
During the Japanese occupation of Indochina, he remained in Hanoi, where he continued regular publications.