Sai Tau Wai (Chinese: 西頭圍; Cantonese Yale: sāai tàuh wàai; lit.
'West End Wai')[1] is a village in Wang Chau, Yuen Long District, Hong Kong.
[1][2] Sai Tau Wai is a recognised village under the New Territories Small House Policy.
For electoral purposes, Sai Tau Wai is part of the Ping Shan North constituency.
Sai Tau Wai was historically a Punti village.