The Dayangzhou Chengjia site (Chinese: 大洋洲程家遗址) is an archaeological site located on the Gan River in Dayangzhou Town, Xingan County, Jiangxi, China.

The rich offerings of bronze and jade objects made it the second richest burial site known after the Fu Hao's tomb.

Dayangzhou was home to a rectangular tomb covered by a tumulus.

Largely damaged by the sand shifts, it did not preserve the skeletal remains of coffin, making some archaeologists doubt that the find was a tomb at all.

The artefacts from Dayangzhou are housed primarily in the Jiangxi Provincial Museum.