Mussy may refer to:
* Mussy-la-Fosse, a commune in the French region of Bourgogne-Franche-Comté
* Mussy-sous-Dun, a commune in the French region of Bourgogne-Franche-Comté
* Mussy-sur-Seine a commune in the French region of Grand Est
Other uses
* Noël Guéneau de Mussy (1813–1885), French physician
* Arnaud Mussy (born 1968), French former religious leader
* ''Mussy'', a portmanteau of "man" and " -ussy" (derived from "pussy") used to denote the male anus