Surname Boljahn (Boljahn 
) , across the world, is a rare cognomen. The cognomen Boljahn is habitual in Western Europe, particularly Germany, where it is a rare surname. Very seldom, Boljahn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Boljahn | Germany, Spain |
|
richard boljahn German plumber (1912-1992), DE (b. 1912) |
|