Surname Pusko (Pusko 
, Пуско 
, Пусько 
) , in the world, is a rare cognomen. The last name Pusko is characteristic of Latvia, where it is quite a rare surname, Lithuania, and Belarus, where it is a rare surname. In absolute terms, this name is the most popular in Russia, Latvia, and Ukraine. Very seldom, Pusko is the forename as well as the last name.