The Zhangjiachuan Hui Autonomous County (simplified Chinese: 张家川回族自治县; traditional Chinese: 張家川回族自治縣; pinyin: Zhāngjiāchuān Huízú Zìzhìxiàn; Xiao'erjing: جْاکِاچُوًا خُوِذُو ذِجِشِیًا) is an administrative district in Gansu, the People's Republic of China. It is one of 58 counties of Gansu. It is part of the Tianshui prefecture, with the city of the same name being the prefecture seat.