Cognomen Krn (Krn 
, كرن 
) , around the world, is quite a rare family name. The family name Krn is characteristic of Sudan, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Algeria. In absolute terms, the name is most common in Sudan, Indonesia, and Saudi Arabia. Much less frequently, Krn is the forename as well as the last name.