Family name Clusen (Clusen 
) , all around the world, is a rare last name. The last name Clusen is habitual in Germany, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Clusen | Germany, United States |
| ruth clusen American activist, US (b. 1922) |
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| gerald w. clusen United States admiral, US |
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| huibrecht van der clusen |
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