Mueang Amnat Charoen (Thai: เมืองอำนาจเจริญ, pronounced [mɯ̄aŋ ʔām.nâːt tɕā.rɤ̄ːn]; Northeastern Thai: เมืองอำนาจเจริญ, pronounced [mɯ̂aŋ ʔām.nâːt tɕā.lɤ̂ːn]) is the capital district (amphoe mueang) of Amnat Charoen province, northeastern Thailand.

In the Thesaphiban administrative reforms around 1900 it was reassigned to Ubon Ratchathani and converted into a district.

[2] Neighboring districts are (from the north clockwise): Senangkhanikhom, Pathum Ratchawongsa, Phana, Lue Amnat, and Hua Taphan of Amnat Charoen Province, and Pa Tio and Thai Charoen of Yasothon province.

The district is divided into 19 sub-districts (tambons), which are further subdivided into 213 villages (mubans).

The town (thesaban mueang) Amnat Charoen covers parts of the tambon Bung.