Surname Oijer (Oijer 
) , globally, is a very rare family name. The last name Oijer is characteristic of Sweden, where it is a rare surname, China, where it is an extremely rare surname, and the United States. Very seldom, Oijer is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oijer | China, United States, Sweden |