Marcel Pérès (born 15 July 1956, Oran, Algeria) is a French musicologist, composer, choral director and singer, and the founder of the early music group Ensemble Organum.
In 1979 he returned to France where he studied medieval music under Michel Huglo at the École pratique des hautes études.
In 1984 Peres became director of ARIMM, the Atelier pour la Recherche sur l’Interprétation des Musiques Médiévales (or "Workshop for Research on the Performance of Medieval Music") with the support of the Fondation Royaumont, created by the Goüin family.
Pérès' compositions include Le Livre des morts égyptiens ("The Egyptian Book of the Dead"), written in 1979, and Mysteria Apocalypsis.
[2] In 1982 Peres founded Ensemble Organum, a group specialising in "pre- and para-Gregorian" chant.