Cognomen Ostmoe (Ostmoe 
) , in the entire world, is a very rare last name. The family name Ostmoe is characteristic of Norway, where it is a rare surname, Spain, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ostmoe | Spain, United States, Norway |
|
geir s. tallaksen ostmoe chess player (b. 1985) |
|