Family name Klooß (Klooß 
) , throughout the world, is a rare surname. The surname Klooß is habitual in Western Europe, particularly Germany, where it is a rare surname.
| hugo klooß (b. 1863) |
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| rolf-dieter klooß German politician, DE (b. 1945) |
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| wolfgang klooß German anglicist and literary scholar, DE (b. 1948) |
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