Last name Colclough (Colclough 
) , all over the world, is quite a rare family name. The cognomen Colclough is characteristic of Northern Europe, particularly Isle of Man, where it is quite a rare surname, Ireland, and the United Kingdom. In absolute terms, this name is the most popular in the United Kingdom, the United States, and Ireland.
| VARIANT | COUNTRY |
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| Colclough | United Kingdom, Australia, Canada, United States, Ireland |
| william colclough politician (b. 1301) |
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| sir caesar colclough, 2nd baronet English politician (b. 1623) |
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| caesar colclough (1696-1766) (b. 1696) |
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| caesar colclough (born 1722) (b. 1722) |
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| caesar colclough (1754-1822) Chief Justice of Newfoundland (b. 1754) |
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| harriet colclough (1764-1832) (b. 1764) |
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| caesar colclough Irish politician, 1766-1842 (b. 1766) |
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| caesar colclough (1766-1824) (b. 1766) |
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| john colclough Irish politician, died 1807 (b. 1767) |
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| john henry colclough Irish revolutionary (b. 1769) |
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| caesar colclough (1773-1835) (b. 1773) |
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| thomas colclough (born 1774) (b. 1774) |
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| guy carleton colclough (1787-1837) (b. 1787) |
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| thomas robert colclough (1806-1836) (b. 1806) |
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| edward colclough (born 1807) (b. 1807) |
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