Taisi Township (Chinese: 臺西鄕; Hanyu Pinyin: Táixī Xiāng; Tongyong Pinyin: Táisi Siang; Wade–Giles: T'ai-hsi Hsiang), is a rural township in Yunlin County, Taiwan, lying to the west of Dongshi, south of Mailiao and north of Sihu, and including a section of coastline on the Taiwan Strait.