Cognomen Chmilenko (Чмиленко 
, Chmilenko 
) , in all the world, is a rare family name. The family name Chmilenko is characteristic of Ukraine, where it is a rare surname, Finland, and Kazakhstan. Not in comparison with a country's population, it is the most numerous in Russia, Ukraine, and Kazakhstan. Very seldom, Chmilenko is the forename as well as the last name.