Xiluo Township or Siluo Township (Chinese: 西螺鎮; Hanyu Pinyin: Xīluó Zhèn; Tongyong Pinyin: Siluó Jhèn; Wade–Giles: Hsi1-lo2 Chen4) is an urban township in Yunlin County, Taiwan.
The place was called Sailei by the native Babuza people. That became Xiluo by translating from Hokkien to Mandarin. It is also formerly called Lethng (Chinese: 螺陽; Pe̍h-ōe-jī: Lê-thng) after the Chinese colonizers hometown. Xiluo Township is one of the most important vegetable growing areas in Taiwan.