Xingan (), sometimes Dayangzhou (大洋洲), is an archaeological site located on the Gan River in Dayangzhou, Xingan County, Jiangxi, China. The site was excavated in 1989. Xingan was home to a rectangular tomb covered by a tumulus. Over 1,000 jade artefacts were discovered at Xingan.
Xingan is known for its unique style of bronze vessels, with 54 being discovered; over 480 bronze objects were uncovered at the site. The bronze casters at Xin'gan copied and mastered the techniques of the Erligang culture, then localized the bronze vessels in a distinct style. Xin'gan is associated with the Wucheng culture.