Surname Curwin (Curwin 
) , across the world, is a rare last name. The cognomen Curwin is characteristic of Canada, where it is a rare surname, New Zealand, and Ireland. In absolute terms, it most frequently occurs in Canada, the United States, and the United Kingdom. Very seldom, Curwin is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Curwin | Trinidad and Tobago, Canada, United Kingdom, South Africa, United States |
| george curwin American clergyman, US (b. 1683) |
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| richard curwin American educationist (1944-2018) (b. 1944) |
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| amy j. curwin researcher |
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| julie curwin Canadian writer, CA |
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