Surname ヒラー (Hiller 
, ヒラー) , across the world, is a common cognomen. The family name ヒラー is habitual in Germany, where it is quite a common surname, Austria, where it is quite a rare surname, and Sweden. In absolute terms, the name is most common in Germany, the United States, and Austria. Very seldom, ヒラー is the forename as well as the last name.