Cognomen Argaia (Argaia 
) , in the world, is an extremely rare surname. The last name Argaia is characteristic of Spain, where it is a very rare surname, and Argentina, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Argaia | Argentina, Spain |
| pedro antonio argaia zubeldia 1732-09-22, ES (b. 1732) |
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| luisa anttonia argaia echeverria 1766-04-03, ES (b. 1766) |
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| ana maria argaia echeverria 1768-01-10, ES (b. 1768) |
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