Surname Frøystein (Frøystein 
) , worldwide, is a very rare family name. The last name Frøystein is habitual in Northern Europe, particularly Norway, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Frøystein | Norway |
Freysteinn, Froeystein, and Froystein
|
frøystein gjesdal Norwegian administrator, NO (b. 1956) |
|
| frøystein wedervang Norwegian economist (1918-2018), NO (b. 1918) |
|