All around the world, Itsaso (Itsaso 
) is a rare epicene given name. The forename Itsaso is characteristic of Southern Europe, particularly Spain, where it is quite a rare epicene name. Much less frequently, Itsaso is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Itsaso | United Kingdom, Finland, Spain, United States, Colombia |
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itsaso arana Spanish actor, ES (b. 1985) |
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itsaso bengoetxea ES (b. 1976) |
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itsaso pradera ES (b. 1986) |
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itsaso conde Spanish basketball player (1996-), ES (b. 1996) |
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| itsaso zabaleta researcher |
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| itsaso arrayago luquin researcher ORCID: 0000-0002-0054-9322 |
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| itsaso leceta researcher |
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| itsaso olaizola azurmendi researcher |
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| itsaso barbarias researcher |
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| itsaso garcia-arcos researcher |
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| itsaso rodríguez-moreno researcher (ORCID 0000-0001-8471-9765) |
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| itsaso blanco researcher |
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| itsaso buesa researcher |
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| itsaso olasagasti researcher |
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| itsaso leunda Spanish racing cyclist, ES (b. 1984) |
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Ma, Lujanbio, Esteban, Vicente, Iriondo, Martinez, Aranburu, Basterra, Gonzalez, Larretxea, Ormaetxea, Zalduegui, Manterola, Madariaga, Aranzabal, Garmendia, Gutierrez, González, Hernandez, Fernandez, Mendizabal, Rodríguez, Buldain, Etxebarria, Berecibar, Arrikarte, Ez, Oz, Diez, Guez, Arana, Perez, Peña, Duran, Gomez, Vidal, Martin, Musitu, Muñoz, Chasco, Benito, Garcia, Larrea, Igeregi, Zabala, Alvarez, Andueza, Ciriano, and Echeverria