The Club des Hashischins (sometimes also spelt Club des Hashishins or Club des Hachichin), was a Parisian society dedicated to the exploration of drug-induced experience, notably with hashish. It was active from about 1844 to 1849 and counted the literary and intellectual elite of Paris among its members. These included Dr. Jacques-Joseph Moreau , Théophile Gautier, Charles Baudelaire, Gérard de Nerval, Eugene Delacroix, and Alexandre Dumas.

Gautier wrote about the club in an article entitled "Le Club des Hachichin" which was published in the Revue des Deux Mondes in February of 1846, recounting his visit in December, presumably of 1845. While he is often cited as the founder of the club, in his article his says he was attending their monthly "séances" for the first time this evening and it is clear that the others are sharing a familiar experience with him.