Dingxi is a prefecture-level city in Gansu province, People's Republic of China.
Dingxi may also refer to:
Dingxi metro station, a metro station of the Taipei Metro Dingxi North railway station, a railway station of Baoji–Lanzhou High-Speed Railway Dingxi railway station, a station on Longhai railway Dingxi Village (頂溪里), a village in Yonghe District, New Taipei City, Taiwan
See also Tingxi