Around the world, Rojahn (Rojahn 
) is a very rare unisex first name. The given name Rojahn is characteristic of South-eastern Asia, particularly Philippines, where it is a very rare epicene name. Predominantly, Rojahn is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rojahn | Norway, Brazil, Australia, United States, Germany |
| gottlieb ferdinand rojahn NO (b. 1860) |
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| ondolf rojahn German judge, DE (b. 1944) |
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