Cognomen Koupar (Купар 
, Koupar 
) , globally, is a rare last name. The family name Koupar is characteristic of Ukraine, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan. In absolute terms, it most frequently occurs in Ukraine, Russia, and India. Much less frequently, Koupar is the forename as well as the last name.
Seyed, and Narayanabhai