Cognomen Daykin (Daykin 
) , across the world, is quite a rare last name. The family name Daykin is characteristic of Cayman Islands, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and Australia, where it is a rare surname. In absolute terms, it is the most numerous in the United Kingdom, the United States, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Daykin | Canada, United Kingdom, United States, South Africa, Australia |
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richard daykin Australian footballer, AU (b. 1887) |
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| robert daykin Australian rules footballer, AU (b. 1881) |
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| thomas daykin footballer (1882-1960), GB (b. 1882) |
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| gilbert daykin British painter (1886-1939), GB (b. 1886) |
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| bert daykin Australian rules footballer, AU (b. 1888) |
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| percy daykin Australian rules footballer (1890-1965), AU (b. 1890) |
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| christopher daykin actuary, GB (b. 1948) |
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jordan daykin GB (b. 1995) |
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| tony daykin American football player, US (b. 1955) |
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| jacqueline w. daykin British computer scientist, GB |
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| norma daykin researcher ORCID ID = 0000-0002-1114-6780 |
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| henry charles daykin Peerage person ID=131979 |
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| tyler daykin researcher |
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| donald randall daykin Ph.D. Case Western Reserve University 1966 |
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| jeanette daykin Peerage person ID=131978 |
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