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Throughout the world, Santillan (Santillan
, Santillán
) is a very rare epicene first name. The forename Santillan is habitual in Philippines, where it is a very rare unisex name, Mexico, and China, where it is an extremely rare feminine name. Predominantly, Santillan is the last name as well as the forename.
Santillan is also a name for the fictitious and mythical characters: .