Cognomen Erostarbe (Erostarbe 
) , in all the world, is a rare family name. The family name Erostarbe is habitual in Spain, where it is a rare surname, Argentina, and France, where it is an extremely rare surname. Much less frequently, Erostarbe is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Erostarbe | France, Argentina, Spain, Brazil |
| jesús morales erostarbe cyclist, ES (b. 1929) |
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| ignacio ibarguchi erostarbe ETA terrorism victim, ES |
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| izaskun ibabe erostarbe researcher |
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| carlos erostarbe |
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| xabier erostarbe Spanish pelotari, ES (b. 1994) |
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| nadia erostarbe ES |
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Ana, Angela, Beñat, Blanca, Javier, Txaber, Nelida, Hector, Iñaki, Yesica, Maitane, Arantza, Candida, Gustavo, Ernesto, Izaskun, Osvaldo, Octavio, Cristian, Patricia, Graciela, Leonardo, Andrea, Fernando, Alicia, Manuel, Ane, Ion, Alba, Blas, Jose, Josu, Jone, Juan, Izar, Maria, Maite, Mikel, Gorka, Jorge, Julia, Julio, Tomas, Elena, Eneko, Idoia, Martin, Silvia, and Federico