Cognomen Orcajo (Orcajo 
) , around the world, is quite a rare surname. The last name Orcajo is habitual in Uruguay, where it is quite a rare surname, Argentina, where it is a rare surname, and Philippines. Measured by absolute frequency, it is the most numerous in Philippines, Argentina, and Spain. Much less frequently, Orcajo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Orcajo | Philippines, Argentina, Spain, Brazil, Uruguay |
| timoteo rojo orcajo Spanish author, ES (b. 1891) |
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| angel orcajo (b. 1934) |
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| oscar orcajo Uruguayan writer, UY (b. 1946) |
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| josé orcajo Spanish painter and comics artist, ES (b. 1948) |
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| gisela orcajo researcher (ORCID 0000-0001-8880-748X) |
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