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Cognomen Chidu (Chidu , キドウ ) , around the globe, is a rare last name. The surname Chidu is characteristic of Romania, where it is quite a rare surname, Afghanistan, where it is a rare surname, and Tanzania, where it is a very rare surname. Measured by absolute frequency, it is commonest in Romania, India, and Afghanistan. Also, Chidu is the forename as well as the last name.