Marc Savoy (b. near Eunice, Louisiana, United States, October 1, 1940) is an American musician and instrument builder of the Cajun tradition. He sings and plays the Cajun accordion.

Savoy holds a degree in chemical engineering but his primary income is derived from his accordion-making business, based at his Savoy Music Center in Eunice, Louisiana. His wife is the singer and guitarist Ann Savoy, whom he met in 1975. He has performed with Dewey Balfa, D. L. Menard, and Michael Doucet, the latter of whom he plays with in the Savoy-Doucet Band.

He hosts regular jam sessions and mini-festivals at the Savoy Music Center.