Sanmen, may refer to:
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Sanmen County
Sanmen County (Tai-chow dialect: Sæn-meng Yön; ) is a coastal county under the jurisdiction of Taizhou city/municipality in the east of Zhejiang Province, China. The county's total area is , and has a population of about people. The county's ...
, a county in Taizhou, Zhejiang, China.
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Sanmen, Longsheng County, a town in Longsheng Various Nationalities Autonomous County, Guangxi, China.
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