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Surname Chiron (Chiron
, Широн
, Чирон
) , around the world, is quite a common last name. The cognomen Chiron is characteristic of France, where it is quite a common surname, Moldova, where it is quite a rare surname, and Luxembourg. Measured by absolute frequency, it is commonest in France, Romania, and Argentina. Much less frequently, Chiron is the forename as well as the last name.