Cognomen Ulfung (Ulfung 
) , worldwide, is a very rare last name. The family name Ulfung is characteristic of Northern Europe, particularly Sweden, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ulfung | Sweden |
|
ragnar ulfung Norwegian singer, SE (b. 1927) |
|
| karl fredrik ulfung Swedish film producer, SE (b. 1966) |
|