Queen Jeongsun or Queen Jung-Soon (???? ??, 2 December 1745 – 11 February 1805) also known as Queen Dowager Yesun (?????) was a Queen consort of Korea as married to King Yeongjo (1724–1776), and the regent of Korea from 1800 to 1805 as the guardian of her minor step great-grandson, Sunjo of Joseon (1790–1834, reigned 1800–1834).