Cognomen Фолько (Folco 
, Folko 
, Фолько 
) , around the world, is quite a rare last name. The family name Фолько is habitual in Italy, where it is quite a rare surname, Argentina, and Slovakia, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Italy, Argentina, and France. Much less frequently, Фолько is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Folco | Brazil, Argentina, France, United States, Italy |
| Folko | France, Canada, Sweden, Germany, Slovakia |
| Фолько | Russia, Kyrgyzstan, Ukraine |