Surname Kolej (Kolej 
, Колей 
) , globally, is a rare last name. The last name Kolej is characteristic of Armenia, where it is quite a rare surname, Slovakia, and Poland, where it is a rare surname. Likewise, Kolej is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kolej | Slovakia, India, United States, Malaysia, Poland |
| Колей | Ukraine, Kazakhstan, Armenia, Russia, Belarus |