Lucy, a 2-syllable girl's name of Latin origin, means: Bringer of light; daybreak. Lucy's ethnic backgrounds include Irish, Scottish and English/Welsh. Entertainers with this name include Lucy Arnaz Ball (Television). It has religious backgrounds in Saints. Nicknames for Lucy are Lu, Luce, Lucilla, Lucina and Lucine. Other names associated with Lucy are Lucette, Lucia, Luciana, Lucida, Lucie, Lucienne, Lucile, Lucille, Lucinda, Lucita, Lulu and Luz.