Family name Гайтко (Gajtko 
, Гайтко 
, Gaytko 
) , across the world, is a rare surname. The surname Гайтко is habitual in Eastern Europe, particularly Slovakia, where it is quite a rare surname, Ukraine, where it is a very rare surname, and Russia. Measured by absolute frequency, the name is most common in Slovakia, the United States, and Ukraine. Very seldom, Гайтко is the forename as well as the last name.