Cognomen Koot (Koot 
, Curtus 
, Goot 
) , worldwide, is quite a common family name. The family name Koot is habitual in Netherlands, where it is quite a common surname, Estonia, where it is quite a rare surname, and Ukraine. Not in comparison with a country's population, the name is most common in Netherlands, Ukraine, and Philippines. Much less frequently, Koot is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koot | Indonesia, Democratic Republic of the Congo, Malaysia, United States, Netherlands |
| Curtus | United Kingdom, South Africa, United States, Canada, Democratic Republic of the Congo |
| Goot | Indonesia, Malaysia, Philippines, United States, Netherlands |
| Кут | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
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henri koot NL (b. 1883) |
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hendrik evert koot Dutch criminal (1898-1941), NL (b. 1898) |
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cornelis machiel antonius koot Dutch mayor, NL (b. 1900) |
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ton koot NL (b. 1907) |
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| pieter cornelis koot NL (b. 1861) |
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| evert van koot Dutch photographer, NL (b. 1877) |
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elly koot Dutch model (born 1943), NL (b. 1943) |
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| cornelis koot NL (b. 1900) |
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raymond koot Dutch comics artist, NL (b. 1962) |
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adick koot Dutch football player/manager/agent, NL (b. 1963) |
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| max koot Dutch photographer, NL (b. 1917) |
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| fred koot Dutch graphic artist, NL (b. 1927) |
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| a.c.j. koot (b. 1923) |
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ruud koot Dutch software developer, NL (b. 1986) |
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aniek van koot Dutch female wheelchair tennis player, NL (b. 1990) |
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