Surname Estupiñan (Estupiñan 
) , throughout the world, is a common family name. The last name Estupiñan is characteristic of Latin America and the Caribbean, particularly Colombia, where it is quite a common surname, Peru, where it is quite a rare surname, and Mexico. Very seldom, Estupiñan is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Estupiñan | Peru, Colombia, Spain, Venezuela, Mexico |
| juan sebatian rodriguez estupiñan Ph.D. École Polytechnique Fédérale de Lausanne 2017 |
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| josé leonardo ruales estupiñan Ecuadorian politician |
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| elizabeth maría benites estupiñan researcher (ORCID 0000-0001-6234-3381) |
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| javier estupiñan Colombian footballer, CO (b. 1984) |
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