Queen Jeongsun, of the Gyeongju Kim clan, was a posthumous name bestowed to the wife and second queen consort of Yi Geum, King Yeongjo, the 21st Joseon monarch. She was Queen consort of Joseon from 1759 until her husband's death in 1776, after which she was honoured as Queen Dowager Yesun during the reign of her step-grandson Yi San, King Jeongjo and as Grand Queen Dowager Yesun during the reign of her step great-grandson Yi Gong, King Sunjo.