Cho Il-sin
| Cho Il-sin | |
| Hangul | 조일신 |
|---|---|
| Hanja | 趙日新 |
| RR | Jo Ilsin |
| MR | Cho Ilsin |
| Childhood name | |
| Hangul | 흥문 |
| Hanja | 興門 |
| RR | Heungmun |
| MR | Hŭngmun |
Cho Il-sin (Korean: 조일신; Hanja: 趙日新; ? – November 12, 1352) was a Goryeo civil official. A close confidant of King Gongmin while the future king was a Yuan hostage in Dadu, Cho became an official of the Goryeo court after Gongmin's return to Goryeo and ascension to the Goryeo throne. His political rivalry with the influential pro-Yuan Ki family, the kin of Yuan Empress Ki culminated in the Cho Il-sin rebellion in 1352. Cho attempted to eliminate the Ki family but failed, and was executed by King Gongmin.