Cognomen Troitiño (Troitiño 
) , in the world, is quite a rare family name. The surname Troitiño is characteristic of Latin America and the Caribbean, particularly Panama, where it is quite a rare surname, Uruguay, and Argentina, where it is a rare surname. Measured by absolute frequency, it is commonest in Argentina, Spain, and Panama. Very seldom, Troitiño is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Troitiño | Argentina, Panama, Venezuela, Spain, Uruguay |
| adrián troitiño Spanish trade unionist, ES (b. 1869) |
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miguel ángel troitiño Spanish geographer, ES (b. 1947) |
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| líber troitiño Uruguayan politician, UY (b. 1900) |
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esmeralda arosemena troitiño Commissioner of the Inter-American Commission on Human Rights (OAS), PA |
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| antton troitiño ETA militant (1957-2021), ES (b. 1957) |
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| xosé manuel rivas troitiño ES (b. 1949) |
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| domingo troitiño arranz ES (b. 1955) |
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| jose luis troitiño vinuesa Spanish politician, ES |
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| jon joseba troitiño ETA member, ES (b. 1980) |
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Ja, Olga, Onil, Omar, Maria, Mario, Marta, Marco, Mabel, Merce, Mirta, Migue, Selva, Sonia, Angel, Aitor, Carla, Celso, Clara, Borja, Kechy, Paula, Ivan, Pablo, Irma, Hugo, Mª, Ana, Guy, Luz, Eve, Eva, Mary, Sara, Alan, Aida, Raul, Rosa, Dora, Loli, Luca, Luis, Jose, Juan, Elsa, Egle, Hebe, Iris, and Pedro