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Surname Somphong (สมพงษ์ , Somphong , สมพงศ์ ) , in all the world, is quite a common cognomen. The cognomen Somphong is habitual in South-eastern Asia, particularly Thailand, where it is quite a common surname, Laos, where it is quite a rare surname, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Thailand, Laos, and China. More frequently, Somphong is the forename as well as the last name.
Rasri, Sitthibut, Amnuaysat, Chitradub, Khatebmad, Tantilikitkul, Thiparpakul, Thuakthao, Udomwatananan, Suwansuphawong, Sooksanguan, Champaphan, Chiraphornkun, Chooprasit, Petborisuit, Damrongchur, Jirasukprasert, Wiboonsantisuk, Assawaboonmee, Chinaramrungruang, Prukphattanarak, Rattanaphan, Sangthong, Yusinchai, Vongkusonlert, Lekwichai, Lesak, Umyat, Saelee, Sinkha, Kuansri, Langka, Johsen, Jinklub, Saetang, Suwanno, Thipphimanchai, Sornmek, Pankaew, Panklao, Leekhroh, Ngoeiyathirakun, Inpaseuth, Sawaidee, Sukkhata, Chanpaen, Chairerk, Phromdhevech, Kapkaeo, and Jaroensinsunthorn