Cognomen Corej (Corej 
) , in all the world, is a rare surname. The cognomen Corej is habitual in Slovakia, where it is quite a rare surname, Czechia, where it is a rare surname, and Canada, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Slovakia, Czechia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Corej | United Kingdom, Canada, Slovakia, United States, Czechia |