Family name Clason (Clason 
, Claasen 
) , all over the world, is quite a common last name. The last name Clason is characteristic of Namibia, where it is quite a common surname, South Africa, where it is quite a rare surname, and Sweden. Not in comparison with a country's population, it is the most numerous in South Africa, Namibia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Clason | Netherlands, Sweden, United States, United Kingdom, Germany |
| Claasen | Netherlands, Namibia, United States, Germany, South Africa |
| johan clason Swedish politician (1667-1747), SE (b. 1667) |
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| isaac clason Swedish politician, SE (b. 1710) |
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| johan clason (b. 1704) |
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| jan clason SE (b. 1704) |
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edward clason SE (b. 1829) |
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| isaac starr clason American actor and writer, US (b. 1789) |
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| patrick clason (b. 1789) |
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isak gustaf clason Swedish architect, SE (b. 1856) |
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hugo clason sailor (1865-1935), SE (b. 1865) |
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samuel clason Swedish politician (1867-1925), SE (b. 1867) |
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charles russell clason American politician (1890-1985), US (b. 1890) |
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| octavius clason German classical philologist, DE (b. 1843) |
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gustaf clason Swedish architect (1893-1964), SE (b. 1893) |
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peder clason Swedish architect, SE (b. 1894) |
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| oliver b. clason American lawyer and politician, US (b. 1850) |
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