Nam Kliang (Thai: น้ำเกลี้ยง, pronounced [náːm klîa̯ŋ]) is a district (amphoe) in the central part of Sisaket province, northeastern Thailand.

Neighboring districts are (from the north clockwise): Kanthararom, Non Khun, Benchalak, Si Rattana, Phayu, and Mueang Sisaket.

The minor district (king amphoe) was created on 7 January 1986, when the four tambons, Nam Kliang, La-o, Tong Pit, and Khoen, were split off from Kanthararom district.

[2] The district is divided into six sub-districts (tambons), which are further subdivided into 75 villages (mubans).

This Sisaket Province location article is a stub.