Queen Sinmyeong of the Chungju Yu clan (Korean: 신명왕후 유씨; Hanja: 神明王后 劉氏) or long-called as Queen Sinmyeongsunseong (Korean: 신명순성왕후; Hanja: 神明順成王后; lit. 'Sinmyeong, the Accomplishment and Holy Queen') was the third Goryeo queen consort through her marriage as the third wife of Wang Geon, its founder and also became the mother of his 5 sons (include Jeongjong and Gwangjong) and 2 daughters.