Surname Dewick (Dewick 
) , all over the world, is a rare family name. The last name Dewick is characteristic of Reunion, where it is quite a common surname, the United Kingdom, where it is a rare surname, and Ireland. Not in comparison with a country's population, it is commonest in the United Kingdom, the United States, and Reunion.
| VARIANT | COUNTRY |
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| Dewick | United Kingdom, Australia, Canada, United States, Reunion |
| william graham dewick Sculptor, modeller (b. 1828) |
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| edward samuel dewick British reverend (1844-1917) (b. 1844) |
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| edward chisholm dewick GB (b. 1884) |
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| steven dewick Australian swimmer, AU (b. 1976) |
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