Delingha, or Delhi, is the seat of the Haixi Mongol and Tibetan Autonomous Prefecture in northern Qinghai province, China. It is located approximately 200 km (120 mi) southeast of the Da Qaidam Administrative Region. It is a mainly industrial county-level city. The Bayin River divides the city into two parts: Hedong and Hexi. Because the prefecture seat is located in Hedong, it is slightly more flourishing than Hexi, which is chiefly agricultural.

Haixi Mongolian and Tibetan Autonomous Prefecture, locally also known as Qaidam Prefecture, is an autonomous prefecture occupying much of the northern half of Qinghai Province, China. It has an area of 325,785 square kilometres (125,786 sq mi) and its seat is Delingha. The name of the prefecture literally means "west of (Qinghai) Lake."