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. He is an authority on Gregorian and pre-Gregorian chant.

Pérès was born into an Algerian family of Spanish origin which was repatriated to France. He grew up in Nice, where he was organist at the Anglican cathedral, and trained in organ and composition at the conservatoire, before continuing his studies in church music at the Royal School of Church Music and at English cathedrals. He worked at the Studio de musique ancienne de Montréal (Montreal early music studio) and for the National Film Board of Canada. In 1979 he returned to France where he studied medieval music under Michel Huglo at the École pratique des hautes études.

In 1982 he founded Ensemble Organum at Sénanque Abbey, a group specialising in in "pre- and para-Gregorian" chant. In 1984 he became director of ARIMM (the Atelier pour la Recherche sur l’Interprétation des Musiques Médiévales or medieval music performance research workshop) with the support of the Fondation Royaumont, created by the Goüin family, owners of Royaumont Abbey near Asnières-sur-Oise in the département of Val-d'Oise, which in 1994 became CERIMM (the Centre Européen pour la Recherche sur l'Interprétation des Musiques Médiévales or European centre for medieval music performance research). In 2001 Ensemble Organum moved to the Abbey of Saint-Pierre in Moissac where Pérès founded CIRMA (the Centre itinérant de recherche sur les musiques anciennes or itinerant centre for research into ancient music).

His compositions include Le Livre des morts égyptiens (1979) and Mysteria Apocalypsis, and he was musical director of Kaj Munk's play Ordet at the Festival d'Avignon in 2008.
In 1990 he was awarded the Leonardo da Vinci Prize by the Italian government, and since 1996 has been a Chevalier dans l'Ordre des Arts et des Lettres. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.