Cognomen Adaro (Adaro 
) , in all the world, is quite a common surname. The cognomen Adaro is characteristic of Argentina, where it is quite a rare surname, Philippines, and Chile. Also, Adaro is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Adaro | Philippines, Argentina, Chile, Ethiopia, India |
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eduardo adaro Spanish architect (1848-1906), ES (b. 1848) |
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luis adaro y magro Spanish mining engineer from Asturias (1849-1915), ES (b. 1849) |
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esteban adaro Argentinian politician (1875-1934), AR (b. 1875) |
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dalmiro adaro Argentinian military personnel, AR (b. 1907) |
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luis adaro ruiz-falcó Spanish writer, ES (b. 1914) |
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josé joaquín de ysasi-ysasmendi adaro ES (b. 1927) |
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| nilda adaro Argentinean writer, AR (b. 1946) |
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