Yuanxi may refer to:
Places in China Yuanxi Subdistrict (源西街道), a subdistrict of Yuancheng District, Heyuan, Guangdong Yuanxi, Sichuan (鸳溪), a town in Cangxi County, Sichuan
Historical eras Yuanxi (元熙, 304–308), era name used by Liu Yuan (Han-Zhao), emperor of Han-Zhao (Former Zhao) Yuanxi (元璽, 352–357), era name used by Murong Jun, emperor of Former Yan Yuanxi (元熙, 419–420), era name used by Emperor Gong of Jin
See also Yuan Xi (died 207), the second son of the warlord Yuan Shao