Cognomen Keen (Keen 
, 基恩 
, キーン 
, among others...) , around the world, is a common surname. The cognomen Keen is habitual in New Zealand, where it is quite a common surname, Malaysia, and Guernsey (explore the name in all countries). Measured by absolute frequency, it is the most numerous in the United States, Malaysia, and the United Kingdom. Very seldom, Keen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Keen | United Kingdom, Australia, United States, Malaysia, India |
| 基恩 | China |
| キーン | Japan |
| Кин | Kazakhstan, Ukraine, Belarus, Bulgaria, Russia |
| קין | Israel |
| william keen Canadian judge (b. 1680) |
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elizabeth keen white Canadian botanical and scientific artist (ca. 1870), CA (b. 1827) |
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mary a. e. keen American Civil War nurse (b. 1835) |
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william williams keen first U.S. brain surgeon., US (b. 1837) |
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| william keen English cricketer (1792-1846) (b. 1792) |
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nancy witcher keen Peerage person ID=41943 (b. 1848) |
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oscar keen Swedish painter and cartoonist, SE (b. 1867) |
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| joseph keen (1819-1892) curry-powder maker (b. 1819) |
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dora keen American mountain climber (1871-1963), US (b. 1871) |
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| jane keen (1830-1900) (b. 1830) |
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| arthur keen British businessman (b. 1835) |
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malcolm keen British actor (1887-1970), GB (b. 1887) |
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| carlos keen Argentinian lawyer and journalist, AR (b. 1840) |
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| samuel ashton keen Methodist Episcopal minister and writer 1842-1895, US (b. 1842) |
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arthur keen British flying ace (1895-1918), GB (b. 1895) |
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