Tsou or TSOU may refer to:
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the Tsou people, an Austronesian indigenous people of Taiwan
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the Tsou language, the language of the Tsou people
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Wade-Giles Romanization of Zou (simplified Chinese: 邹; traditional Chinese: 鄒)
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Peter Tsou, principal science staff member at the Jet Propulsion Laboratory
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Shih-Ching Tsou, Taiwan-born, actress, director, producer
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Tsou Hai-ying, the birth name of Jennifer Su (born 1968), South African radio and television personality
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Acronym of The Secret of Us, Gracie Abrams album