Surname Fahnrich (Fahnrich 
) , in all the world, is a rare last name. The cognomen Fahnrich is characteristic of Switzerland, where it is a rare surname, Czechia, and Austria. Measured by absolute frequency, it is the most numerous in Switzerland, Czechia, and the United States. Very seldom, Fahnrich is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fahnrich | United Kingdom, Poland, United States, Switzerland, Czechia |