Thoen (Thai: เถิน, pronounced [tʰɤ̌n]) is a district (amphoe) in the southern part of Lampang province, northern Thailand.

Mae Wa National Park is in the western part of the district at the southern end of the Khun Tan Range.

[1] The Phi Pan Nam Mountains dominate the landscape of the eastern side of the district.

[2] The district is divided into eight subdistricts (tambons), which are further subdivided into 90 villages (mubans).

This Lampang province location article is a stub.