Last name Trahn (Trahn 
, تران) , globally, is a very rare family name. The cognomen Trahn is habitual in Sweden, where it is a rare surname, Germany, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Trahn is the forename as well as the last name.
| carl friedrich trahn German carpenter, DE (b. 1806) |
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| karl trahn German architect (1889-1964), DE (b. 1889) |
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| johannes trahn German politician, DE (b. 1930) |
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