Cognomen Retamoso (Retamoso 
) , all around the world, is quite a rare family name. The last name Retamoso is habitual in Latin America and the Caribbean, particularly Argentina, where it is quite a rare surname, Bolivia, and Uruguay. Not in comparison with a country's population, it is the most numerous in Latin America and the Caribbean, particularly Argentina, Peru, and Bolivia.
| VARIANT | COUNTRY |
|---|---|
| Retamoso | Uruguay, Argentina, Peru, Bolivia, Colombia |
| alejandro diego retamoso pertuso Uruguayan writer, UY (b. 1970) |
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| pablo retamoso Uruguayan writer, UY |
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| ivan retamoso Ph.D. City University of New York 2015 |
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| edwin retamoso Peruvian footballer, PE (b. 1982) |
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Mr, Abel, Aida, Aura, Caro, Cami, Cali, Coco, Kami, Raul, Rosa, Roso, Roza, Rooy, Rene, Rick, Rita, Ruth, Dora, Doli, Lais, Lena, Anyu, Aldo, Alba, Alan, Ms, Sol, Ana, Abi, Roo, Leo, Luz, Nao, Eli, Ema, Lila, Eve, Hã, Zoe, Mary, Mati, Maia, Sara, Saul, Sofi, Alex, Alee, Eva, and Luis