Surname Trohn (Trohn 
) , in the world, is a very rare cognomen. The family name Trohn is characteristic of Israel, where it is a very rare surname, Germany, where it is an extremely rare surname, and the United States. Also, Trohn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trohn | Germany, Israel, United States |