Cognomen Koltok (Koltok 
) , worldwide, is a rare surname. The last name Koltok is characteristic of Bosnia and Herzegovina, where it is quite a rare surname, Poland, where it is a very rare surname, and Canada. Measured by absolute frequency, this name is the most popular in Bosnia and Herzegovina, Poland, and France. Very seldom, Koltok is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koltok | Bosnia and Herzegovina, Poland, Canada, Russia, France |