Last name Trevathan (Trevathan 
) , in all the world, is quite a rare family name. The family name Trevathan is characteristic of Isle of Man, where it is quite a rare surname, New Zealand, where it is a rare surname, and the United States. Not in comparison with a country's population, it is the most numerous in the United States, New Zealand, and Australia.
| VARIANT | COUNTRY |
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| Trevathan | Australia, Canada, New Zealand, Isle of Man, United States |
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danny trevathan American football linebacker, US (b. 1990) |
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| wenda r. trevathan (b. 1947) |
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| james k trevathan researcher |
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| edwin trevathan pediatrician |
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| jarrod trevathan researcher |
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| paul trevathan MotoGP crew chief |
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| edwin trevathan American physician, US |
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