Family name Kroier (Kroier 
) , throughout the world, is a very rare last name. The family name Kroier is habitual in Denmark, where it is a very rare surname, Germany, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kroier | Denmark, Germany, United States |
| ole kroier Danish cyclist (b. 1940) |
|
|
| yola kroier |
|