Last name Trøan (Trøan 
) , around the globe, is a very rare cognomen. The surname Trøan is habitual in Norway, where it is a rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Trøan | Germany, Norway |
|
jens trøan (b. 1883) |
|
| eivind trøan (b. 1873) |
|
|
| merethe trøan Norwegian singer, voice actor, NO (b. 1970) |
|
|
| kjetil trøan sound designer (b. 1976) |
|