Last name Vintonyak (Vintonyak 
, Винтоняк 
) , across the world, is a rare surname. The family name Vintonyak is habitual in Kazakhstan, where it is a rare surname, Russia, and Czechia. Not in comparison with a country's population, it is the most numerous in Russia, Kazakhstan, and Ukraine. Very seldom, Vintonyak is the forename as well as the last name.