Toucheng Township is an urban township in Yilan County, Taiwan. The township includes Guishan Island and Guiluan Island in the Philippine Sea. The Senkaku Islands, known in Mandarin as the Diaoyu Islands, are claimed as part of the township.

Townships are the third-level administrative subdivisions of counties of the Republic of China (Taiwan), along with county-administered cities. After World War II, the townships were established from the following conversions on the Japanese administrative divisions: