Surname Planin (Planin 
, Планин 
) , worldwide, is a very rare cognomen. The family name Planin is characteristic of Russia, where it is a very rare surname, Kazakhstan, and the United States, where it is an extremely rare surname. In absolute terms, the name is most common in Russia, the United States, and India. Much less frequently, Planin is the forename as well as the last name.