Family name Кроер (Kroyer 
, Кроер 
, Kroer 
) , globally, is quite a rare last name. The last name Кроер is habitual in Iceland, where it is quite a common surname, Bosnia and Herzegovina, where it is quite a rare surname, and Denmark. Not in comparison with a country's population, it most frequently occurs in Denmark, the United States, and Bosnia and Herzegovina. Very seldom, Кроер is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kroyer | United States, Denmark, Germany, Bosnia and Herzegovina, Austria |
| Кроер | Russia, Belarus |
| Kroer | Norway, Belarus, United States, Denmark, Germany |