Surname Sytsko (Sytsko 
, Сыцько 
, Сыцко ) , globally, is a rare family name. The family name Sytsko is habitual in Belarus, where it is quite a rare surname, Russia, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Eastern Europe, particularly Russia, Belarus, and Ukraine.