Family name Kolosovas (Kolosovas 
) , all around the world, is a very rare last name. The surname Kolosovas is characteristic of Lithuania, where it is quite a rare surname, Norway, where it is a rare surname, and Venezuela, where it is a very rare surname. Much less frequently, Kolosovas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kolosovas | Norway, Mexico, Venezuela, United States, Lithuania |