Cosette may refer to:
Cosette, a fictional character in the novel Les Misérables by Victor Hugo Cosette Lee (1910 – 1976), Canadian actress Cosette Simon (born 1953), American politician, mayor of Ft. Wayne, Indiana 915 Cosette, an S-type asteroid belonging to the Flora family of Main Belt asteroids Cosette, French "yé-yé" singer Cosette (given name)