Last name Folko (Folko 
, Фолько 
) , all around the world, is a very rare family name. The cognomen Folko is habitual in Slovakia, where it is a rare surname, Sweden, and Kyrgyzstan, where it is a very rare surname. Measured by absolute frequency, the name is most common in Slovakia, Sweden, and Russia. Likewise, Folko is the forename as well as the last name.