Last name Trosper (Trosper 
) , in all the world, is quite a rare family name. The surname Trosper is characteristic of the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada. Not in comparison with a country's population, it most frequently occurs in the United States, Canada, and the United Kingdom.
| VARIANT | COUNTRY |
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| Trosper | Canada, Turkey, India, United States, United Kingdom |
| guy trosper American screenwriter (1911-1963), US (b. 1911) |
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justin trosper American musician, US (b. 1972) |
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| larry trosper college basketball player (1973–1975) Memphis |
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| james trosper native American medicine man |
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