Cognomen Pigun (Pigun 
, Пигун 
) , throughout the world, is a very rare last name. The family name Pigun is characteristic of Russia, where it is a very rare surname, Kazakhstan, and Ukraine, where it is an extremely rare surname. In absolute terms, this name is the most popular in Russia, Kazakhstan, and Philippines. Likewise, Pigun is the forename as well as the last name.