Cognomen Idiart (Idiart 
) , all over the world, is quite a rare family name. The cognomen Idiart is habitual in Argentina, where it is quite a rare surname, Uruguay, and France, where it is a rare surname. In absolute terms, it is the most numerous in Argentina, France, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Idiart | France, Brazil, Uruguay, United States, Argentina |
| roger idiart Basque writer, FR (b. 1931) |
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| alphonse idiart French politician, FR (b. 1942) |
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| jean-louis idiart French politician, FR (b. 1950) |
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| michel idiart French politician, FR (b. 1965) |
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| dominique idiart French politician, FR (b. 1966) |
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| andrés idiart researcher ORCID ID = 0000-0003-0919-6655 |
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| marco a. idiart researcher |
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| martin ignacio idiart Ph.D. University of Pittsburgh and École Polytechnique 2006 |
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Mr, Ruth, Rudy, Dora, Gana, Lara, Leci, Lola, Luca, Luis, Luiz, Jose, Josh, Joao, Jean, Juan, Theo, Nina, Elsa, Elba, Elda, Eldy, Ruby, Rosa, Raul, Peio, Ms, Max, Sol, Ana, Kat, Guy, Lea, Lis, Luc, Luu, Elfi, Jan, Eny, Yon, Sara, Alan, Alma, Aldo, Anne, Axel, Caco, Pati, Jon, and Emma