The Jwauijeong, also known as the Left State Councilor or Second State Councilor, was a member of the Uijeongbu. The Jwauijeong was subordinate in rank only to the Yeonguijeong, the highest-ranking official of the Joseon government, during the Joseon dynasty of Korea (1392–1910). Only one official was appointed to the position and was variously referred to as Jwasang, Jwajeongseung, Jwagyu, Jwahap, or Jwadae. Since its foundation, the Joseon dynasty, which had succeeded to the state apparatus of the Goryeo dynasty (918–1392), had been adjusting its government organization. In 1400, the second year after King Jeongjong came to the throne, he renamed the Dopyeong Assembly (都評議事司), the highest organ in charge of the state affairs of Goryeo, to Uijeongbu and created the post of Jwauijeong along with that of Uuijeong (Third State Councilor) and Yeonguijeong (Chief State Councilor). The three officials were collectively referred to as the Samjeongseung ('three top officials') or the Samuijeong ('three high councilors').

List of Left State Councilors