Adrien Achille Proust (18 March 1834 – 26 November 1903) was a French epidemiologist and hygienist.

In 1869, he was sent on a mission to Russia and Persia in order to conduct cholera research – a journey in which he also visited Athens, Constantinople, Messina and several locations in Germany.

[3] In 1888, Adrien Proust, believing like many doctors of his day that masturbation may lead to homosexuality, sent his son Marcel to a brothel with 10 francs.

[4] Adrien Proust is mentioned in Love in the Time of Cholera, a 1985 novel by Gabriel García Márquez.

With neurologist Gilbert Ballet he was the author of an important book on neurasthenia, titled L'hygiène du neurasthénique (1900).