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 | Indonesia, Ivory Coast, Nigeria, Bulgaria, Democratic Republic of the Congo |
| Кольо | Russia, Ukraine, Bulgaria |
| Kolyo | South Africa, Bulgaria, United States, India, Greece |
| Koliu | Malaysia, Nigeria, United States, India, Myanmar |