Princess Jeongsin
| Princess Jeongsin | |
|---|---|
| Princess of Goryeo | |
| Reign | 1390–1392 |
| Coronation | 1390 |
| Predecessor | Princess Suknyeong |
| Successor | Princess Gyeonghwa |
| Monarch | Wang Yo, King Gongyang |
| Born | 1366 Goryeo |
| Died | 1421 (aged 55) Joseon |
| Spouse |
Woo Seong-beom, Prince Danyang
(m. 1390–1392) |
| Issue | Lady Woo |
| House | House of Wang (by birth) Danyang Woo clan (by marriage) |
| Father | Gongyang of Goryeo |
| Mother | Royal Consort Sun of the Gyoha No clan |
| Religion | Buddhism |
Princess Jeongsin (Korean: 정신궁주; 정신공주; Hanja: 貞信宮主; 貞信公主; 1366–1421) was a Goryeo Royal Princess as the second daughter of King Gongyang and Royal Consort Sun.