Mueang Loei (Thai: เมืองเลย; IPA: [mɯ̄aŋ lɤ̄ːj]) is the capital district (amphoe mueang) of Loei province, northeastern Thailand.

Neighboring districts are (from the north clockwise): Chiang Khan, Pak Chom, Na Duang, Erawan, Wang Saphung, Phu Ruea, and Tha Li of Loei Province.

At first named Kut Pong after the central tambon, it was later renamed Mueang Loei.

The district is divided into 14 sub-districts (tambons), which are further subdivided into 130 villages (mubans).

The town (thesaban mueang) Loei covers tambon Kut Pong.