Mang Yang () is a former district (huyện) of Gia Lai province in the Central Highlands region of Vietnam.
As of 2024 the district had a population of 84,986. The district covers an area of 1,126.39 km². The district capital lies at Kon Dơng. In 1954, at the end of the First Indochina War, Mang Yang was the site of a bloody battle won by the Viet Minh.
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