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Throughout the world, Alarcon (Alarcon , Alarcón , Аларкон ) is a rare unisex forename. The given name Alarcon is characteristic of Bolivia, where it is a rare boy's name, Italy, where it is a very rare mostly female, but infrequently male name, and Colombia, where it is a very rare gender-neutral name. Measured by absolute frequency, it is commonest in Philippines, Brazil, and Italy. More prevalently, Alarcon is the last name as well as the forename.
Alarcon is also a name for the fictitious and mythical characters: Alarcon , the operatic character in the opera Karl V by Ernst Krenek; captain of the Emperor, Karl V..