Cognomen ケルト (Keld 
, Celt 
, ケルト) , all over the world, is a rare family name. The surname ケルト is habitual in Isle of Man, where it is quite a rare surname, Denmark, where it is a rare surname, and Turkey. In absolute terms, it most frequently occurs in Turkey, the United States, and the United Kingdom. More frequently, ケルト is the forename as well as the last name.