Last name Kruzhilko (Кружилко 
, Kruzhilko 
) , in the entire world, is a very rare surname. The last name Kruzhilko is characteristic of Ukraine, where it is a very rare surname, Kazakhstan, and Spain. In absolute terms, it is the most numerous in Ukraine, Spain, and Russia. Very seldom, Kruzhilko is the forename as well as the last name.