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Family name Teno (Teno , 特诺 , Téno ) , worldwide, is quite a rare surname. The last name Teno is characteristic of Papua New Guinea, where it is quite a rare surname, Cameroon, and Finland. Measured by absolute frequency, it is the most numerous in Cameroon, Indonesia, and the United States. More prevalently, Teno is the forename as well as the last name.