Khun Yuam (Thai: ขุนยวม, pronounced [kʰǔn jūam]; Northern Thai: ขุนยวม, pronounced [kʰǔn ɲūam]) is a district (amphoe) of Mae Hong Son province, northern Thailand.

Mueang Khun Yuam was made a district (amphoe) in 1910.

Khun Det Pracharak (ขุนเดชประชารักษ์) was the first head of district.

The district is divided into six sub-districts (tambons), which are further subdivided into 45 villages (mubans).

This Mae Hong Son province location article is a stub.