Princess Myeongan
| Princess Myeongan 명안공주 | |
|---|---|
| Princess of Joseon | |
| Born | Yi On-hui 30 June 1665 Joseon |
| Died | 25 June 1687 (aged 21) Joseon |
| Burial | Sasa-dong, Ansan, Gyeonggi Province, South Korea |
| Spouse |
Oh Tae-ju (m. 1680–1687) |
| Issue | Oh Won, Duke Munmok (Adopted son) |
| House | House of Yi (by birth) Haeju Oh clan (by marriage) |
| Father | Hyeonjong of Joseon |
| Mother | Queen Myeongseong of the Cheongpung Kim clan |
Princess Myeongan (Korean: 명안공주; Hanja: 明安公主; 30 June 1665 – 25 June 1687), personal name Yi On-hui (이온희; 李溫姬), was a Korean princess as the third daughter of Hyeonjong of Joseon and Queen Myeongseong.