Last name Klemen (Klemen 
, Клемен 
, كليمن) , throughout the world, is quite a rare family name. The surname Klemen is habitual in Slovenia, where it is quite a common surname, Croatia, where it is quite a rare surname, and Austria. More prevalently, Klemen is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Klemen | Sierra Leone, India, Austria, Slovenia, Croatia |
| Клемен | Russia |
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rihard klemen Slovenian-Austrian chemist and biochemist, AT (b. 1902) |
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| joseph klemen (b. 1878) |
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| franc černe - klemen SI (b. 1898) |
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klemen klemen Slovenian rapper, SI (b. 1975) |
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ingo klemen Austrian footballer, AT (b. 1986) |
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| franci klemen SI (b. 1963) |
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| andy klemen college basketball player (1991–1991) Northeastern Illinois |
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| dominggus klemen Indonesian political candidate, ID |
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| nicholas d klemen researcher (ORCID 0000-0003-1353-539X) |
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| petra klemen SI (b. 1971) |
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| rudi klemen |
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| ana klemen SI |
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| maja klemen SI |
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