Surname Escoriaza (Escoriaza 
) , worldwide, is a rare family name. The surname Escoriaza is habitual in Switzerland, where it is a rare surname, Argentina, where it is a very rare surname, and Spain. Measured by absolute frequency, it is the most numerous in Argentina, Spain, and the United States. Very seldom, Escoriaza is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Escoriaza | Spain, Switzerland, United States, Poland, Argentina |
| fernán lópez de escoriaza Spanish physician, ES (b. 1480) |
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| josé gregorio escoriaza leceta Spanish composer (1884-1943), ES (b. 1884) |
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| teresa de escoriaza Spanish journalist, professor, translator and novelist, ES (b. 1891) |
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| luis lópez escoriaza Spanish painter, ES |
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| juan carlos pineiro escoriaza |
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