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Surname Garwin (Garwin
, 加温
) , throughout the world, is a rare family name. The cognomen Garwin is habitual in Honduras, where it is a very rare surname, the United States, and Nicaragua. Not in comparison with a country's population, it most frequently occurs in the United States, Germany, and the United Kingdom. More prevalently, Garwin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Garwin | Canada, Philippines, United States, United Kingdom, Germany |
| 加温 | China |