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Worldwide, Sanjuan (Sanjuan , 三娟 ) is a rare gender-neutral forename. The forename Sanjuan is characteristic of Latin America and the Caribbean, particularly the Dominican Republic, where it is a rare boy's name, Mexico, where it is a rare dominantly male, but infrequently feminine name, and Colombia, where it is a very rare masculine name. Measured by absolute frequency, it is commonest in China, Mexico, and the United States. More frequently, Sanjuan is the last name as well as the forename.