Tianyuan

Tianyuan may refer to:


 * Tianyuan (Go) (天元), centre of a Go board or a Go competition in China
 * Tianyuan District (天元区), Zhuzhou, Hunan
 * Tianyuan, Cixi (天元镇), town in Cixi City, Zhejiang
 * Tianyuan Cave (田园洞), cave near Beijing where the Tianyuan man was found
 * Tianyuan man (田园洞人), one of the earliest modern humans to inhabit eastern Asia
 * Tian yuan shu (天元術), a Chinese system of algebra for polynomial equations created in the 13th century

Historical eras

 * Tianyuan (天元, 1379–1388), era name used by Uskhal Khan Tögüs Temür, emperor of Northern Yuan
 * Tianyuan (添元, 1453–1457), era name used by Esen Taishi, ruler of Northern Yuan