Prince Eunjeon (Hangul: 은전군; Hanja: 恩全君; 14 August 1759 - 26 August 1778) was a royal family member of the Joseon dynasty in Korea. His real name is Yi Chan (Hangul: 이찬; Hanja: 李禶).
He is an illegitimate son of Crown Prince Sado. His mother is Lady Park Bing-ae, a concubine of Crown Prince Sado. In January 1761, his father killed his mother with a knife, caused by insanity.