Surname
- Seong, a Minnan romanization of the Chinese surname 常 ( Cháng)
- Seong, a romanization of the Korean surname 성 ( 成, Chéng)
- Sung Hyun-ah (born 1975), South Korean actress
- Seong Mi-na, a fictional Korean character
- Seong Sammun (1418-1456), scholar-official
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