Siang may refer to:
Siang language, an Austronesian language of Indonesia Xiang River, a tributary of the Yangtze Brahmaputra River, known as Siang in Arunachal Pradesh, India; it gives its name to the following districts: East Siang district Siang district West Siang district Upper Siang district Siangic languages, Sino-Tibetan language family of India Greater Siangic languages, Sino-Tibetan language grouping
See also
Ann Siang Hill in Singapore