Mueang Phayao (Thai: เมืองพะเยา, pronounced [mɯ̄a̯ŋ pʰā.jāw]) is the capital district (amphoe mueang) of Phayao province, northern Thailand.

Doi Luang, the highest point of the Phi Pan Nam Range is at the western end of the district.

[2] In 1938 the word "mueang" was removed, as only the capital districts of the provinces were to have that name.

[4] Mueang Phayao district is divided into 15 sub-districts (tambons), which are further subdivided into 172 administrative villages (mubans).

Missing numbers belong to tambons which now form Phu Kamyao District.