Sanwan Township[1] is a rural township in northern Miaoli County, Taiwan.

It lies between the Taiwan Strait on the west and mountains on the east.

The township comprises eight villages: Beipu, Dahe, Daping, Dingliao, Neiwan, Sanwan, Tongjing and Yonghe.

The township is part of Miaoli County Constituency II electoral district for Legislative Yuan.

This article about a location in Taiwan is a stub.