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 | Malaysia, Poland, India, Slovakia, United States |
| Колей | Kazakhstan, Russia, Belarus, Armenia, Ukraine |