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Cognomen Antao (安涛 , Antao , Antão ) , across the world, is a common family name. The cognomen Antao is habitual in Portugal, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Kuwait. In absolute terms, it is commonest in India, Portugal, and Brazil. Likewise, Antao is the forename as well as the last name.