Tin Shui Wai New Town is a satellite town in the northwestern New Territories of Hong Kong. Originally a gei wai (基圍) fish pond area, it was developed in the 1980s as the second new town in Yuen Long District and the eighth in Hong Kong. It is 25 kilometres (16 mi) due northwest of Central, the main business area in the territory, on land reclaimed from low-lying areas south of Deep Bay, next to Ping Shan. The population was 292,000 in 2014, while the total projected population for when the town is fully built-out is about 306,000.

The Hong Kong government started developing new towns in the 1950s to accommodate Hong Kong's booming population. During the first phase of development, the newly developed towns were called "satellite towns", a concept borrowed from the United Kingdom, of which Hong Kong was a colony. Kwun Tong, located in eastern Kowloon, and Tsuen Wan, located in the south-west of the New Territories, were designated as the first satellite towns, when the urban area in Hong Kong was still relatively small, restricted to the central and western parts of Kowloon Peninsula and the northern side of Hong Kong Island. Wah Fu Estate was also built in a remote corner on the southern side of Hong Kong Island, with similar concepts but at a smaller scale.