Datong Hui and Tu Autonomous County, Datong County, or Serkhog County (simplified Chinese: 大通回族土族自治县; traditional Chinese: 大通回族土族自治縣; pinyin: Dàtōng Huízú Tǔzú Zìzhìxiàn; Tibetan: རྟ་ཐང་ཧུའེ་རིགས་ཧོར་རིགས་རང་སྐྱོང་རྫོང; or more frequently Tibetan: གསེར་ཁོག་རྫོང; Monguor: Daatun Hui szarbaten Mongghul szarbaten njeenaa daglagu xan; Xiao'erjing: دَاتْو خُوِذُو تُوذُو ذِجِشِیًا) is an autonomous county of Hui and Tu peoples in Qinghai Province, China. It is under the administration of the prefecture-level city of Xining, the capital of Qinghai.
