Cognomen ハルト (Haruto , ハルト , Hatlo ) , all around the world, is quite a common family name. The surname ハルト is characteristic of Japan, where it is quite a rare surname, Norway, and Myanmar, where it is a rare surname. In absolute terms, it is the most numerous in Japan, Norway, and Indonesia. Very seldom, ハルト is the forename as well as the last name.