Surname Кольо (Kolo 
, Кольо 
, Kolyo 
) , globally, is a common last name. The cognomen Кольо is characteristic of Bulgaria, where it is quite a common surname, Nigeria, and the Democratic Republic of the Congo, where it is quite a rare surname. Also, Кольо is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kolo | Nigeria, Democratic Republic of the Congo, Indonesia, Ivory Coast, Bulgaria |
| Кольо | Bulgaria, Russia, Ukraine |
| Kolyo | Bulgaria, South Africa, Greece, United States, India |
| Koliu | Nigeria, Malaysia, United States, Myanmar, India |