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Family name Pian (Pian , เปียน , เปี้ยน) , globally, is a common cognomen. The cognomen Pian is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Brunei, and Indonesia. Measured by absolute frequency, the name is most common in Indonesia, China, and Malaysia. Also, Pian is the forename as well as the last name.