Family name Betsko (Betsko 
, Бецко 
) , in all the world, is a rare surname. The surname Betsko is habitual in Ukraine, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan. Measured by absolute frequency, it is commonest in Ukraine, Russia, and the United States. Much less frequently, Betsko is the forename as well as the last name.