Mueang Chiang Mai is the capital district (amphoe mueang) of Chiang Mai Province in northern Thailand. The district contains the city of Chiang Mai. Neighbouring districts are (from the north clockwise) Mae Rim, San Sai, San Kamphaeng, Saraphi and Hang Dong. The main river through the district is the Ping River.
The area of Mueang Chiang Mai District was the central part of the Lanna Kingdom, named Nopphaburi Si Nakhon Phing Chiang Mai. King Mengrai the Great was the first king of the Mengrai dynasty, who established the city.
The government created Mueang Chiang Mai district in 1899. The first district office was opened in 1929, on the west side of the old city hall of Chiang Mai. A new district office was opened in August 1989. Mueang Chiang Mai is divided into 16 sub-districts (tambon), which are further subdivided into 78 administrative villages (muban).

Source: Wikipedia