Linkou (林口) may refer to:
Mainland China Linkou County, of Mudanjiang, Heilongjiang Linkou, Heilongjiang, county seat of Linkou County Linkou, Guizhou, town in Qixingguan District, Bijie
Taiwan Linkou District, rural district of New Taipei Linkou Line, railway branch line, located in Taoyuan County and New Taipei Linkou Station, station on the Linkou Line in Linkou District, New Taipei New Taipei Municipal Lin-kou High School (formerly National Linkou High School), a high school in Linkou District, New Taipei