Ping Shan Tang Clan Gallery, Museum and Grade II historic building in Yuen Long District, Hong Kong.

Ping Shan Tang Clan Gallery is a restored two-story building in Yuen Long District, Hong Kong, housing artifacts, photographs, and family records related to the Tang clan. The exhibition rooms follow a clear sequence, guiding visitors through different themes of family life and local history.

The Ping Shan Police Station was completed on 22 April 1899, after the 1898 Convention for the Extension of Hong Kong Territory leased the New Territories to Britain and violent clashes broke out between the British military and the Ping Shan Tang clan. It served as the police base for northwestern New Territories. In 1965, when the Yuen Long district police station opened, the site became headquarters and training centre of the police dog unit. In 1997 the government and the Tang clan agreed to convert it into a gallery, and it opened on 15 April 2007.

The gallery occupies a former police station and displays documents, photographs, and objects tracing the Tang family's life across centuries. Visitors can see how a single family shaped the social and economic life of an entire region.

The gallery sits along the Ping Shan Heritage Trail, which connects several historic sites and can be explored on foot. A morning visit gives enough time to walk the full trail at a relaxed pace.

The former police station's north wing has two chimneys on its pitched tile roof and an open corridor; from there the building overlooks the Tang Ancestral Hall, the Tsui Sing Lau Pagoda and the Kun Ting Study Hall. The site was handed to the Leisure and Cultural Services Department in late 2002 and converted for HK$12 million.