Wangshan Tuku, Historical mansion complex in Nanchang, China.

Wangshan Tuku is a Qing-era mansion complex of the Cheng family in Wangshangang, Datangping township, Xinjian county, Nanchang, Jiangxi. Its 25 grey-brick, grey-tile houses stand in rows flanking the ancestral hall, each running four to seven bays deep, with 1,443 rooms and 572 light wells in all. The westernmost building is the 48-room reception hall for officials.

The compound was built in 1821 during the Daoguang period of the Qing Dynasty as a residence for the prominent Cheng family. It reflects the wealth and status this family held during that era.

The compound is named after Wangshan Gang, the hill in Datangping township where it stands. Its scale reflects the Cheng brothers' official careers: nine brothers, among them governors of Huguang, Jiangsu and Anhui, built it together from 1821. The central ancestral hall anchors 25 brick-and-tile houses, and the westernmost "Receiving Officials Hall" has 48 rooms for guests.

The compound lies at Wangshangang, Datangping Township, Xinjian County, well outside central Nanchang, so arrange transport in advance. Inside, 25 brick houses run in rows from the ancestral hall, with the reception hall and its 48 rooms at the far west; follow the lanes to keep your bearings among 1,443 rooms and 572 courtyards.

In 1968 the estate was turned into a "class education exhibition hall" as a negative example, and it was named alongside the Liu family manor of Dayi in Sichuan. Renovation began in 2003, and in 2004 a Museum of Chinese Mansion Culture was set up here. The site became a Nanchang municipal protected unit in April 2004 and a Jiangxi provincial one in 2006.