Cognomen Biörnstad (Biörnstad 
) , in the entire world, is a very rare last name. The family name Biörnstad is characteristic of Northern Europe, particularly Sweden, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Biörnstad | Sweden |
Bioernstad, Björnstad, Bjørnestad, and Bjørnstad
| lillemor biörnstad Swedish actress (1904-1995), SE (b. 1904) |
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| margareta biörnstad Swedish archaeologist, SE (b. 1928) |
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| arne biörnstad SE (b. 1924) |
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