Phu Sang (Thai: ภูซาง, pronounced [pʰūː sāːŋ]) is a district (amphoe) of Phayao province in northern Thailand.

Neighboring districts are (from the south clockwise): Chiang Kham of Phayao Province and Thoeng of Chiang Rai province.

[2] With publication in the Royal Gazette on 24 August the upgrade became official.

[3] The district is divided into five sub-districts (tambons), which are further subdivided into 58 villages (mubans).

This Phayao Province location article is a stub.