Wuhai (Chinese: 乌海市; Mongolian: Üqai qota, Mongolian cyrillic.Үхай хот) is a prefecture-level city and regional center in the Inner Mongolia Autonomous Region, China, and is by area the smallest prefecture-level division of the region. It is located on the Yellow River between the Gobi and Ordos deserts. Wuhai became a single city occupying both banks of the Yellow River with the amalgamation on 1976 of left-bank (west) Wuda (then administrated by Bayan Nuur League) together with Haibowan on the right (east) bank (then administrated by Ikh Juu league). Wuhai is one of very few cities with an antipode which is not only on land (as opposed to open ocean), but which is another inhabited city; the antipode of Wuhai is almost exactly on the city of Valdivia, Chile. Football commentator and Television host Huang Jianxiang is born here.
The modern location of Wuhai was originally composed of two towns: Wuda which lied on the western side of the Yellow River and Haibowan which was located in the eastern side of the river. Wuda became a coal mining town around 1864 when it was settled by Chinese laborers. Slightly later, Haibowan was settled by Chinese farmers around 1900. Wuda and Haibowan were merged as Wuhai in 1976.
Wuhai has an area of 1,754 km2 (677 sq mi) and, as of 2000, 427,553 inhabitants (243.76 inhabitants/km2).