Cognomen Wojahn (Wojahn 
) , in the entire world, is quite a rare family name. The family name Wojahn is habitual in Germany, where it is a rare surname, Brazil, and the United States.
| VARIANT | COUNTRY |
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| Wojahn | Brazil, Switzerland, Sweden, United States, Germany |
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r. lorraine wojahn American politician (1920-2012), US (b. 1920) |
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| hans wojahn (b. 1902) |
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| eberhard wojahn (b. 1922) |
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| klaus wojahn German politician, DE (b. 1935) |
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| david wojahn American poet, US (b. 1953) |
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| dirk wojahn badminton player, DE (b. 1964) |
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| alisete wojahn person identified in the Museu da Pessoa collection, BR (b. 1968) |
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| jörg wojahn DE (b. 1971) |
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| ursula wojahn |
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