Globally, Кольо (Kolo 
, Кольо 
, Kolyo 
) is a common mostly masculine, but seldom female forename. The first name Кольо is characteristic of Bulgaria, where it is a common male name, Nigeria, where it is quite a common largely masculine, but infrequently girly name, and Greece, where it is quite a rare masculine name. In absolute terms, it most frequently occurs in Nigeria, Bulgaria, and India. Also, Кольо is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kolo | Bulgaria, Indonesia, Ivory Coast, Nigeria, Democratic Republic of the Congo |
| Кольо | Russia, Bulgaria, Ukraine |
| Kolyo | Bulgaria, India, Greece, South Africa, United States |
| Koliu | Malaysia, Myanmar, India, United States, Nigeria |
|
кольо радев-черкеза BG (b. 1850) |
|
|
кольо тенев BG (b. 1910) |
|
|
кольо йонков BG (b. 1921) |
|
| кольо стойчев BG (b. 1881) |
|
|
| кольо карагьозов Bulgarian businessman and diplomat, BG (b. 1896) |
|
|
| кольо кънев BG (b. 1915) |
|
|
| кольо георгиев Bulgarian writer, BG (b. 1926) |
|
|
| кольо коларов BG (b. 1924) |
|
|
| кольо арабаджиев BG (b. 1924) |
|
|
| кольо витковски BG (b. 1925) |
|
|
| кольо дончев bulgarian actor, BG (b. 1940) |
|
|
| кольо георгиев Bulgarian politician, BG (b. 1940) |
|
|
| кольо николов Bulgarian writer, BG (b. 1942) |
|
|
| кольо севов BG (b. 1933) |
|
|
| кольо бъчваров BG (b. 1953) |
|