Surname Osiier (Osiier 
) , in the entire world, is a very rare cognomen. The cognomen Osiier is characteristic of Denmark, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Osiier | Denmark, United States |
| ivan osiier Danish fencer, DK (b. 1888) |
|
|
| ellen osiier Danish fencer, DK (b. 1890) |
|