Hayley \ha(y)-ley\ as a girl's name (also used as boy's name Hayley), is pronounced HAY-ley. It is of Old English origin, and the meaning of Hayley is "hay meadow". Place name. May possibly be from the Norse word "haela", meaning "hero". Made famous by actress Hayley Mills in the 1960s. Hayley has 14 variant forms: Haeley, Haelie, Haely, Hailea, Hailee, Haileigh, Haily, Haleigh, Haley, Halie, Hally, Haylea, Haylee and Hayleigh. Baby names that sound like Hayley are Hailey and Halley. View a list of the 2 names that reference Hayley.