Family name Cockroft (Cockroft 
) , around the world, is quite a rare surname. The cognomen Cockroft is characteristic of New Zealand, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and Singapore. Not in comparison with a country's population, it most frequently occurs in the United States, the United Kingdom, and Australia.
| VARIANT | COUNTRY |
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| Cockroft | Australia, United Kingdom, United States, Singapore, New Zealand |
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charles cockroft Canadian politician, CA (b. 1887) |
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| sam cockroft New Zealand rugby union player, NZ (b. 1864) |
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| eric cockroft New Zealand rugby union player, NZ (b. 1890) |
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don cockroft American football player, US (b. 1945) |
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peter cockroft British meteorologist, GB (b. 1957) |
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| w. p. cockroft UK author (1909-1992), GB (b. 1909) |
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| joe cockroft English footballer (1911-1994), GB (b. 1911) |
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| hubert cockroft English footballer (1918-1979), GB (b. 1918) |
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hannah cockroft British wheelchair racer, GB (b. 1992) |
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| david cockroft GB (b. 1935) |
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| john cockroft British judge, GB (b. 1947) |
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| wilfred halliday cockroft D.Phil. University of Oxford 1952 |
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| anne m. cockroft Ph.D. University of Nottingham 1978 |
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| kevin m cockroft researcher |
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| glenn graeme cockroft New Zealander awarded QSM in 2022 for services to traffic safety, NZ |
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