Tangyuan or Tang Yuan, or variation may refer to:
- Tangyuan (food) (汤圆), Chinese food made from glutinous rice flour
- Tangyuan County (汤原县), of Jiamusi, Heilongjiang, China
- Tangyuan, Shandong (唐园镇), a town in Linqing, Shandong, China
- Tang Yuan (唐渊, born 1989), Chinese soccer player