Last name Cools (เย็น 
, Cools 
, Колс) , throughout the world, is a common surname. The cognomen Cools is characteristic of Belgium, where it is quite a common surname, Saint Lucia, and Netherlands, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Belgium, Netherlands, and Indonesia. Very seldom, Cools is the forename as well as the last name.
| VARIANT | COUNTRY |
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| เย็น | Thailand |
| Cools | Netherlands, Belgium, France, United States, Indonesia |
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reginaldus cools BE (b. 1618) |
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| joannes cools NL (b. 1611) |
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| françois cools (b. 1769) |
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amédée de cools FR (b. 1830) |
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| franciscus cools politician (1790-1862), BE (b. 1790) |
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| pierre joseph cools Belgian politician (1800-1884), BE (b. 1800) |
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| charles cools Belgian politician, BE (b. 1852) |
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ruud cools Dutch university teacher (1908-1987), NL (b. 1908) |
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| auguste cools (b. 1849) |
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| alfred cools Belgian politician, BE (b. 1861) |
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| emiel cools Belgian politician (1865-1933), BE (b. 1865) |
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| eugène cools French composer, FR (b. 1877) |
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andré cools Belgian politician (1927-1991), BE (b. 1927) |
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willie cools Belgian painter (1931-2011), BE (b. 1931) |
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bob cools former mayor of Antwerp, BE (b. 1934) |
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