Kim Seok-ju(김석주, 金錫冑, 1634 – September 20 1684) was a Confucian scholar, writer and politician of the Korean Joseon Dynasty. He is the elder cousin of Queen Myungsung and paternal first cousin once removed of 19th king Sukjong. His penname was Shigam(식암, 息庵) and Chinese style name was Sabaik(사백, 斯百).