San Wai (Chinese: 新圍) is a walled village in Ha Tsuen, Yuen Long District, Hong Kong.

San Wai is a recognized village under the New Territories Small House Policy.

[1] For electoral purposes, San Wai is part of the Ha Tsuen constituency.

It serves as the social venue which plays the dual roles as a temple and an ancestral hall of San Wai.

Basin meal feasts are organized in front of the Temple during Yeung Hau Festival and Lunar New Year.