Family name Westreim (Westreim 
) , in all the world, is an extremely rare last name. The surname Westreim is habitual in Northern Europe, particularly Norway, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Westreim | Norway |
Vesterheim, Vestrheim, Westerheim, and Westrheim
| hans olsen westreim Norwegian farmer and politician, NO (b. 1755) |
|