Mueang Chiang Rai (Thai: เมืองเชียงราย, pronounced [mɯəŋ tɕʰiəŋ raːj]; Northern Thai: ᩮᨾᩥᩬᨦᨩᩭᨦᩁᩣᩭ: Mueang Chiang Hai; Lao: Mueang Xieng Hai) is a city in Amphoe Mueang Chiang Rai, Changwat Chiang Rai, a northernmost Changwat in Thailand.

The full name means "Mangrai's City,"^{[citation needed]} as it was established as a capital city in the reign of King Mangrai, in the year 1262 BC.