Surname Colquhoun (科洪 
, Calhoun 
, Colquhoun ) , around the globe, is a common family name. The family name Colquhoun is characteristic of Jersey, where it is quite a common surname, the United States, and Jamaica. Not in comparison with a country's population, this name is the most popular in the United States, the United Kingdom, and Canada. Much less frequently, Colquhoun is the forename as well as the last name.
| VARIANT | COUNTRY |
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| 科洪 | China |
| Colquhoun, Calhoun | Australia, United Kingdom, United States, Jamaica, Canada |
| Кохун | Ukraine, Russia |
| anne colquhoun (1685-1724) (b. 1685) |
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patrick colquhoun merchant, statistician, magistrate, river police (1745-1820), GB (b. 1745) |
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colquhoun grant British Army soldier and intelligence officer of the Napoleonic Wars, GB (b. 1780) |
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janet colquhoun religious writer, GB (b. 1781) |
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alexander colquhoun-stirling-murray-dunlop church lawyer and politician (b. 1798) |
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| john colquhoun Scottish theological writer (b. 1748) |
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| william colquhoun (born 1750) (b. 1750) |
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| margaret colquhoun (born 1751) (b. 1751) |
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| helen colquhoun (born 1753) (b. 1753) |
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| ludovic colquhoun (1757-1835) (b. 1757) |
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| colquhoun grant British cavalry general (b. 1764) |
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william colquhoun Canadian politician, CA (b. 1814) |
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| margaret colquhoun (1766-1840) (b. 1766) |
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| sir james colquhoun, 3rd baronet, of luss politician (1774-1836) (b. 1774) |
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| james colquhoun diplomat, GB (b. 1780) |
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