Dongyin Township (Tungyin) is an insular rural township which is part of Lienchiang County, Fujian Province, Republic of China (Taiwan). The islands are in the East China Sea off the coast of Fujian Province, China near the cities of Fuzhou (Foochow) and Ningde. The township is known for its natural environment and Eastern Min culture, for the historical Dongyong Lighthouse and for its military importance and history as the northernmost territory of Taiwan.