Cognomen Viriato (Viriato 
) , throughout the world, is quite a rare surname. The last name Viriato is habitual in Angola, where it is quite a rare surname, Mozambique, and Portugal. Measured by absolute frequency, it is commonest in Brazil, Angola, and Mozambique. Also, Viriato is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Viriato | Mozambique, Portugal, Spain, Brazil, Angola |
| edilson viriato (b. 1966) |
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| rodolfo lázaro soares viriato researcher |
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| kelvin viriato Mozambican taekwondoin, MZ |
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| f. viriato Painter |
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| carina viriato Portuguese association football player, PT (b. 1990) |
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| anne viriato Brazilian mixed martial arts (MMA) fighter, BR (b. 1997) |
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