Surname Trentini (Trentini 
) , all over the world, is quite a common last name. The cognomen Trentini is characteristic of Italy, where it is quite a rare surname, Austria, and Uruguay. Not in comparison with a country's population, it is the most numerous in Brazil, Italy, and Argentina. Very seldom, Trentini is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Trentini | Austria, Argentina, Italy, Brazil, United States |
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emma trentini singer (1878-1959), US (b. 1878) |
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| attilio trentini (b. 1857) |
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| albert von trentini Austrian writer and playwright, AT (b. 1878) |
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| guido trentini Italian painter (1889-1975), IT (b. 1889) |
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| ferruccio trentini Italian politician, teacher and mayor (1910-1996), IT (b. 1910) |
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mauro trentini Italian cyclist, IT (b. 1975) |
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| giancarlo trentini Italian psychologist and university professor (1928-2017), IT (b. 1928) |
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| gaudenzio trentini Italian association football player, IT (b. 1937) |
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caroline trentini Brazilian supermodel, BR (b. 1987) |
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| raffaele trentini Italian association football player, IT (b. 1945) |
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| alearda trentini IT (b. 1946) |
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| massimo trentini (b. 1950) |
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| peggy trentini American actress, US (b. 1968) |
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| patrick trentini Italian composer, IT (b. 1976) |
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| fabio trentini IT (b. 1968) |
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