Family name Калем (Kalem 
, Калем 
) , globally, is a common cognomen. The last name Калем is characteristic of Bosnia and Herzegovina, where it is quite a common surname, Turkey, and Croatia, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Turkey, Indonesia, and Algeria. Much less frequently, Калем is the forename as well as the last name.