Jacques Dupin (March 4, 1927 in Privas, Ardèche – October 27, 2012; Paris) was a French poet, art critic, and co-founder of the journal L'éphemère.
Dupin was born in the town of Privas in the South of France, where his father was a psychiatrist at a state mental hospital. In 1944, the family moved to Paris, where, in 1950, the poet René Char helped him publish his first collection of poems.
In 1966, he co-founded the poetry quarterly L’Éphémère, with poets including André du Bouchet, Yves Bonnefoy and Paul Celan.
He was the director of publication at Galerie Maeght,, which represented Joan Miró, a close friend. The gallery also represented Marc Chagall, Alberto Giacometti, Francis Bacon and Wassily Kandinsky. Giacometti and Bacon both painted his portrait.
Dupin wrote Miró's biography, numerous monographs on the artist's work, and was empowered by Miró's family to be the sole authenticating authority of the artist's work; a role that made him much sought after by collectors. In 1987, Dupin was the curator of a retrospective of Miró's work at the Solomon R. Guggenheim Museum, the first such retrospective in New York since 1959.