Fayer is a surname. Notable people with the surname include:
Elsa Fayer (born 1974), French radio and television presenter Jane Fayer (born 1958), Puerto Rican swimmer Michael D. Fayer (born 1947), American chemical physicist Yuri Fayer (1890–1971), Soviet Jewish conductor
Fayer is occasionally used as a first name for both men and women.
See also Fayed