Cognomen Peirano (Peirano 
) , globally, is quite a common family name. The last name Peirano is characteristic of Uruguay, where it is quite a common surname, Argentina, where it is quite a rare surname, and Italy. Much less frequently, Peirano is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Peirano | Uruguay, Argentina, Peru, Italy, Chile |
| enrico amilcare peirano Italian politician, IT (b. 1852) |
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| virginia peirano wife of Stephen Courtauld, GB (b. 1873) |
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mariza peirano Brazilian anthropologist, professor, BR (b. 1942) |
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| pedro peirano AR (b. 1886) |
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lorenzo peirano Chilean writer, CL (b. 1962) |
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miguel gustavo peirano Argentine economist, AR (b. 1966) |
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pedro peirano Chilean film director and screenwriter, CL (b. 1972) |
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marta peirano Spanish writer and journalist, ES (b. 1975) |
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| gastone peirano Italian painter, IT (b. 1926) |
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irma peirano Argentine poet, AR |
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| lelio peirano IT (b. 1921) |
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fernando peirano AR (b. 1974) |
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lorenzo peirano volleyball player, IT (b. 1991) |
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| luis peirano Peruvian journalist, politician and sociologist, PE (b. 1946) |
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| cesar peirano Peruvian rower, PE (b. 1950) |
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