Family name Danchyk (Данчик 
, Danchyk) , throughout the world, is a rare cognomen. The cognomen Danchyk is characteristic of Ukraine, where it is a rare surname, Kazakhstan, and Belarus, where it is a very rare surname. Measured by absolute frequency, the name is most common in Ukraine, Russia, and Kazakhstan. Very seldom, Danchyk is the forename as well as the last name.