Cognomen Turnock (Turnock 
) , in the entire world, is quite a rare surname. The last name Turnock is habitual in Isle of Man, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and New Zealand. Not in comparison with a country's population, it is the most numerous in the United Kingdom, the United States, and Australia.
| VARIANT | COUNTRY |
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| Turnock | United Kingdom, Australia, United States, Canada, New Zealand |
| david turnock Scottish historian and author (1938-2011) (b. 1938) |
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| james harold turnock, jr. Ph.D. University of Illinois at Urbana-Champaign 1954 |
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| jim turnock college basketball player (1947–1948) Indiana State |
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| stephen r turnock researcher |
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| steven turnock researcher, ORCID id # 0000-0002-0036-4627 |
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| allison turnock researcher |
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| stephen turnock researcher (ORCID 0000-0002-1959-3569) |
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| sarah turnock British judge, GB (b. 1985) |
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