Family name היילי (Hayley 
, Haley , Halley ) , throughout the world, is a common cognomen. The family name היילי is characteristic of Guernsey, where it is quite a common surname, Aruba, and the United States. Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Canada. More frequently, היילי is the forename as well as the last name.