Surname Reoyo (Reoyo 
) , in the world, is a rare last name. The surname Reoyo is habitual in Spain, where it is a rare surname, Philippines, and Argentina, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Philippines, Spain, and the United States. Likewise, Reoyo is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Reoyo | Spain, Philippines, United States, Argentina, France |
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narcisa pérez reoyo Spanish writer, ES (b. 1849) |
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| enrique reoyo (b. 1850) |
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| toribio reoyo Spanish trade unionist, ES (b. 1900) |
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| demetrio mansilla reoyo Spanish bishop and historian (1910-1998), ES (b. 1910) |
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| narciso pérez reoyo ES (b. 1900) |
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| victor luis reoyo French politician, FR (b. 1917) |
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| feliciano del río reoyo Spanish politician, ES |
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