Family name Mylko (Милко 
, Mylko 
, Мылко 
) , around the globe, is a rare surname. The last name Mylko is habitual in Bulgaria, where it is quite a rare surname, Lithuania, and Belarus, where it is a rare surname. Measured by absolute frequency, the name is most common in Eastern Europe, particularly Bulgaria, Russia, and Ukraine. Also, Mylko is the forename as well as the last name.