Surname Castelblanco (Castelblanco 
) , all over the world, is quite a common cognomen. The surname Castelblanco is characteristic of Latin America and the Caribbean, particularly Colombia, where it is quite a common surname, Panama, where it is quite a rare surname, and Puerto Rico. Not in comparison with a country's population, the name is most common in Colombia, the United States, and Chile.
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| Castelblanco | Panama, Chile, Colombia, United States, Puerto Rico |
| stefano solis castelblanco Roman Catholic bishop (b. 1580) |
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| salvador rodríguez castelblanco Roman Catholic bishop (b. 1657) |
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| josé maría ugarte castelblanco Chilean politician, CL (b. 1770) |
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jorge castelblanco Panamanian long-distance runner, PA (b. 1987) |
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jorge castelblanco Panamanian racing cyclist, PA (b. 1988) |
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| germán castelblanco Colombian actor, CO (b. 1957) |
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| jose castelblanco Colombian racing cyclist, CO (b. 1969) |
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| mariela castelblanco researcher (ORCID 0000-0001-6216-8499) |
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| esmeralda castelblanco researcher ORCID ID = 0000-0002-2061-6270 |
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| wilton gerardo sánchez castelblanco (b. 1973) |
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| catalina castelblanco Chilean actor, CL (b. 1997) |
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Mr, Cheo, Carl, Beto, Raul, Rosa, Rene, Ruth, Dora, Lady, Ling, Lina, Lida, Lucy, Luis, Luna, Ludy, Jose, John, Juli, July, Juan, Aida, Jhon, Anyi, Anna, Ms, Mar, Ale, Ana, Lis, Liz, Luz, Jim, Eva, Zoe, Mary, Maye, Mery, Mile, Sara, Sean, Alex, Alee, Alba, Ange, Angy, Anny, and Tato