Hun Yuan
| Grand Master Hun Yuan | |
|---|---|
| 混元禪師 | |
| Hun Yuan in 2021 | |
| Born | Chang Yi-Jui 2 February 1944 Zhongliao, Nantou, Taiwan | 
| Known for | Founder of Weixinism | 
Chang Yi-Jui, later known as Grand Master Hun Yuan (born 2 February 1944 in Zhongliao, Nantou, Taiwan), is the founder of Weixinism, also known as Weixin Shengjiao, a Taiwanese new religious movement. He is also the author of several books on I Ching and Feng Shui and a painter.