Family name Belloso (Belloso 
) , all over the world, is quite a common surname. The surname Belloso is habitual in Latin America and the Caribbean, particularly El Salvador, where it is quite a common surname, Guatemala, where it is quite a rare surname, and Uruguay. Measured by absolute frequency, it is the most numerous in El Salvador, Guatemala, and Spain. Very seldom, Belloso is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Belloso | Mexico, Argentina, Guatemala, El Salvador, Spain |
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ramón belloso Salvadoran soldier, SV (b. 1810) |
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| josé alfonso belloso y sánchez Salvadoran priest; archbishop of San Salvador, SV (b. 1873) |
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waldo belloso Argentinian pianist, AR (b. 1933) |
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| rogelio belloso Uruguayan writer, UY (b. 1905) |
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carlos belloso Argentine actor, AR (b. 1963) |
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| ricardo untzue belloso ES (b. 1910) |
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| josep maria rovira belloso ES (b. 1926) |
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anabel belloso Salvadorian politician (b. 1987) |
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| luis belloso Argentinian racing driver, AR (b. 1960) |
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| gonzalo belloso Argentine footballer, AR (b. 1974) |
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| roberto lópez belloso UY (b. 1969) |
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| rafael segundo belloso Ph.D. University of Northern Colorado 1999 |
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| matías belloso AR |
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| mikel belloso ES (b. 1985) |
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