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Last name Ayong (Ayong , 阿勇 , 阿永 ) , all over the world, is quite a common surname. The cognomen Ayong is habitual in Vanuatu, where it is quite a common surname, Gabon, and Cameroon, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Philippines, Cameroon, and Indonesia. Also, Ayong is the forename as well as the last name.