Sihu Township (, WadeâÂÂGiles: Szuhu) is a rural township in Yunlin County, Taiwan.
As of February 2023, it has a population total of 21,458 and an area of 77.1189 km<sup>2</sup>, including a section of coastline on the Taiwan Strait.
Sihu's coastal waters were traditionally used in oyster farming, but in 1991 they were zoned for offshore industrial use.
The township comprises 21 villages: Botung, Bozi, Caicuo, Feisha, Feitung, Guanggou, Huliao, Huxi, Lincuo, Lintung, Luchang, Lunbei, Lunnan, Neihu, Sanxing, Shihu, Sihu, Xiangdiao, Xide, Xinzhuang and Xiwei.
The township produces radishes.