| Princess Deoknyeong | |
| Succession: | Princess of Goryeo |
| Coronation: | 1148 |
| Predecessor: | Princess Seunggyeong |
| Successor: | Princess Changrak |
| Regent: | Wang Hae, King Injong |
| Reg-Type: | Monarch |
| Death Date: | 1192 |
| Death Place: | Goryeo |
| Spouse: | Wang Gam; first cousin once removed |
| Issue: | Crown Princess Hyoryeong |
| House: | House of Wang (by birth and marriage) |
| Father: | Injong of Goryeo |
| Mother: | Queen Gongye of the Jangheung Im clan |
Princess Deoknyeong (; d. 1192) was a Goryeo Royal Princess as the second daughter of King Injong and Queen Gongye.[1]
In 1148, she and her elder sister formally became a princess .[2] Then, she married her great-grandfather's grandson, Wang Gam the Duke Gangyang and had a daughter who would marry Deoknyeong's nephew, Crown Prince Hyoryeong in 1168 and became the crown princess .[3]
Princess Deoknyeong was said to have a very beautiful appearance, and can have a good conversation with everyone despite her elegant behavior. Due to this, her eldest brother who was the king–Uijong, invited her to the palace day and night, stayed with him, drank and sang together until got very drunk, which there was a scandal circulated outside the palace at this time.[4] Thus, Uijong became very angry with official Mun Geuk-gyeom who appealed this fact to him and burned Mun's complaont, even demoted him to Hwangju.