Cognomen Trillo (Trillo 
, Trill 
, Trilo 
) , all around the world, is a common last name. The surname Trillo is habitual in Latin America and the Caribbean, particularly Peru, where it is quite a common surname, Argentina, where it is quite a rare surname, and Uruguay. In absolute terms, it most frequently occurs in Peru, Mexico, and Spain. Very seldom, Trillo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trillo | Spain, Mexico, United States, Argentina, Peru |
| Trill | Spain, Italy, France, United States, Argentina |
| Trilo | Spain, Brazil, India, France, United States |
| Trille | Spain, Brazil, Italy, France, United Kingdom |
| juan de ocón y trillo Costa Rican politician, ES (b. 1575) |
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| francisco de trillo y figueroa Spanish historian, ES (b. 1618) |
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dionisio trillo UY (b. 1822) |
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miguel trillo Mexican military personnel (1883-1923), MX (b. 1883) |
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| edelmiro trillo Spanish politician, ES (b. 1854) |
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| luís bouza trillo Spanish journalist, ES (b. 1869) |
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joseph a. trillo American politician, US (b. 1943) |
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jesús marcano trillo Venezuelan professional baseball player, catcher, infielder, VE (b. 1950) |
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federico trillo Spanish politician, ES (b. 1952) |
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françois trillo French journalist and rugby union player, FR (b. 1953) |
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| dionisio trillo pays Uruguayan writer, UY (b. 1909) |
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| juan josé trillo Argentine boxer, AR (b. 1909) |
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| josé villaverde trillo ES (b. 1900) |
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| enrique gonzález trillo (b. 1904) |
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| john trillo Anglican bishop (1915-1992), GB (b. 1915) |
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