The Hongshan culture (simplified Chinese: 红山文化; traditional Chinese: 紅山文化; pinyin: Hóngshān wénhuà) was a Neolithic culture in northeastern China. Hongshan sites have been found in an area stretching from Inner Mongolia to Liaoning, and dated from about 4700 to 2900 BC.
The culture is named after Hongshanhou (simplified Chinese: 红山後; traditional Chinese: 紅山後; pinyin: Hóngshānhòu), a site in Hongshan District, Chifeng. The Hongshanhou site was discovered by the Japanese archaeologist Torii Ryūzō in 1908 and extensively excavated in 1935 by Kōsaku Hamada and Mizuno Seiichi.
In northeast China, Hongshan culture was preceded by Xinglongwa culture (6200-5400 BCE), Xinle culture (5300-4800 BCE), and Zhaobaogou culture, which may be contemporary with Xinle and a little later.
Yangshao culture was in the larger area and contemporary with Hongshan culture (see map). These two cultures interacted with each other.
Hongshan burial artifacts include some of the earliest known examples of jade working. The Hongshan culture is known for its jade pig dragons and embryo dragons. Clay figurines, including figurines of pregnant women, are also found throughout Hongshan sites. Small copper rings were also excavated.