Surname Bjorna (Bjorna 
) , all around the world, is a very rare last name. The last name Bjorna is habitual in Norway, where it is a rare surname, Austria, and Spain, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Norway, Austria, and the United States. Likewise, Bjorna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bjorna | Norway, Austria, Haiti, Albania, United States |