Surname هیلی (Haley 
, هیلی) , across the world, is a common cognomen. The family name هیلی is habitual in Guernsey, where it is quite a common surname, the United States, and the United Kingdom, where it is quite a rare surname. In absolute terms, it is commonest in the United States, the United Kingdom, and Canada. Also, هیلی is the forename as well as the last name.