Last name Korchynska (Korchynska 
) , throughout the world, is a very rare cognomen. The family name Korchynska is habitual in Eastern Europe, particularly Hungary, where it is a rare surname, Ukraine, where it is an extremely rare surname, and Russia. Not in comparison with a country's population, it most frequently occurs in Hungary, Ukraine, and the United States. Very seldom, Korchynska is the forename as well as the last name.