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Cognomen Songdej (Songdej
) , across the world, is a very rare last name. The cognomen Songdej is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. More prevalently, Songdej is the forename as well as the last name.
Makai, Sriprasert, Songkitipisan, Thipthong, Rojasavachai, Manojinda, Kusavadee, Poonsiripermpon, Sutthasa, Nimnete, Somsaad, Sangsri, Machowpa, Yensap, Maphab, Mahasena, and Wongpraserdkul