What does Cosette mean?
Cosette \c(o)-sette, cos(et)-te\ as a girls' name is pronounced koh-ZETT. It is of French origin, and the meaning of Cosette is "little thing". From "cose" meaning "thing". Also possibly a feminine diminutive of Nicholas. Literary: in Victor Hugo's musical "Les MisÚrables", Cosette is the female romantic lead and Jean Valjean's beloved adopted daughter.
Cosette is an uncommon given name for females. Cosette is also a unique last name for both adults and children. (2000 U.S. Census)
Displayed below is the baby name popularity of Cosette for girls. Cosette has yet to make it into the Top 1000 so far. (2014 Birth Statistics)