Mulazzo is a comune in the Province of Massa-Carrara in the Italian region Tuscany, located about 120 kilometres northwest of Florence and about 35 kilometres northwest of Massa. Mulazzo borders the following municipalities: Calice al Cornoviglio, Filattiera, Pontremoli, Rocchetta di Vara, Tresana, Villafranca in Lunigiana, Zeri.