Cognomen Dobrovoljac (Dobrovoljac 
) , throughout the world, is a very rare last name. The surname Dobrovoljac is characteristic of Croatia, where it is a rare surname, Switzerland, where it is a very rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dobrovoljac | Switzerland, Croatia, Canada |
| milan dobrovoljac HR (b. 1879) |
|