Haibei Tibetan Autonomous Prefecture (Chinese: 海北藏族自治州; Tibetan: མཚོ་བྱང་བོད་རིགས་རང་སྐྱོང་ཁུལ་, Wylie: mtsho-byang bod-rigs rang-skyong-khul, Tib.pin.: cojang poirig ranggyong kü) is an autonomous prefecture of northeastern Qinghai Province, China. The prefecture has an area of 39,354 square kilometres (15,195 sq mi) and its seat is Haiyan County. Its name literally means "north of Qinghai Lake." This Tibetan culture area was incorporated into Qinghai province in the early 1950s, as it lies distant from the Tibet Autonomous Region.

According to the 2020 census, Haibei had 265,322 inhabitants with a population density of 6.58 inhabitants/km².

The following is a list of ethnic groups in the prefecture, as of the 2020 census.

The prefecture is subdivided into 4 county-level divisions: 3 counties, and 1 autonomous county:

Haibei Tibetan Autonomous Prefecture is a pilot area for "Plateau Modern Ecological Animal Husbandry." This model integrates controlled grazing, pasture restoration, and sustainable livestock management to balance ecological conservation with the economic development of local herding communities on the fragile alpine grassland ecosystem.

36°57′N 100°54′E / 36.95°N 100.90°E / 36.95; 100.90