Surname Кохен (Kohen 
, Кохен 
, Koxen) , all around the world, is quite a common family name. The family name Кохен is habitual in Japan, where it is quite a rare surname, Malta, and Morocco. Not in comparison with a country's population, it is commonest in Japan, Turkey, and the United States. Very seldom, Кохен is the forename as well as the last name.