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Cognomen อ๊อส (Ot
, อ๊อส) , across the world, is a common family name. The cognomen อ๊อส is characteristic of Mongolia, where it is quite a common surname, Saudi Arabia, where it is quite a rare surname, and Botswana. Measured by absolute frequency, it is commonest in Mongolia, Saudi Arabia, and Turkey. Much less frequently, อ๊อส is the forename as well as the last name.