Cosette \c(o)-sette, cos(et)-te\ as a girl's name is pronounced koh-ZETT. It is of French and Greek origin, and the meaning of Cosette is "people of victory". Feminine diminutive of Nicholas. Literary: in Victor Hugo's musical "Les Mis?bles", Cosette is the female romantic lead and Jean Valjean's beloved adopted daughter.

Cosette has 2 variant forms: Cosetta and Cozette.

Baby names that sound like Cosette are Cassity, Casidee, Casadee, Kosta and Kostya.