Cognomen Haruhi (Haruhi 
, هاروهي) , worldwide, is a rare family name. The cognomen Haruhi is habitual in Japan, where it is a very rare surname, Indonesia, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Japan, Indonesia, and China. Also, Haruhi is the forename as well as the last name.