Family name Celaya (Celaya 
, Zelaia 
, Целая 
) , across the world, is a common surname. The surname Celaya is habitual in Reunion, where it is quite a common surname, Mexico, and Spain, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Mexico, the United States, and Spain. Much less frequently, Celaya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Celaya | Spain, Mexico, France, United States, Argentina |
| Zelaia | Italy, Spain, Brazil, United Kingdom |
| Целая | Ukraine, Russia, Kyrgyzstan, Kazakhstan |
| juan de celaya Spanish scholar, ES (b. 1490) |
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| graçia celaya otamendi 1600-11-05, ES (b. 1600) |
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| joanes celaya otamendi 1603-10-26, ES (b. 1603) |
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| cathalina celaya otamendi 1639-11-13, ES (b. 1639) |
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| pedro celaya otamendi 1642-12-23, ES (b. 1642) |
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| martin celaya otamendi 1647-03-14, ES (b. 1647) |
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| matheo celaya otamendi 1648-03-30, ES (b. 1648) |
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| maria celaya ypenzavitartea 1668-12-31, ES (b. 1668) |
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| maria josepha celaya ypenza vitartea 1671-02-17, ES (b. 1671) |
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| pedro celaya ypenza 1676-03-18, ES (b. 1676) |
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| lucia celaya ypenza 1677-05-23, ES (b. 1677) |
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| antonio celaya ypenza 1680-01-07, ES (b. 1680) |
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| joan bautista celaya ypenza 1683-06-23, ES (b. 1683) |
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| maria josepha celaya zubeldia 1686-03-18, ES (b. 1686) |
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| joseph antonio celaya zubeldia 1686-03-18, ES (b. 1686) |
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