Sihu Township (Chinese: 四湖鄉; pinyin: Sìhú Xiāng; Pe̍h-ōe-jī: Sì-ô͘-hiong, Wade–Giles: 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 km2, 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.

[1] 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.

This article about a location in Taiwan is a stub.