Mueang Uthai Thani (, ) is the capital district (amphoe mueang) of Uthai Thani province, northern Thailand.
Neighboring districts are (from the west clockwise) Nong Khayang and Thap Than, of Uthai Thani Province; Krok Phra and Phayuha Khiri of Nakhon Sawan province; Manorom and Wat Sing of Chai Nat province.
The district is divided into 14 sub-districts (tambons), which are further subdivided into 86 villages (mubans). The town (thesaban mueang) Uthai Thani covers the whole tambon Uthai Mai. There are a further eight tambon administrative organizations (TAO).