Surname Trobis (Trobis 
) , worldwide, is a rare family name. The last name Trobis is habitual in Slovenia, where it is quite a rare surname, Croatia, where it is a very rare surname, and Germany, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Slovenia, the United States, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Trobis | Germany, Croatia, Slovenia, United States |