Hong Jong-o (, 7 July 1925 â 13 September 2011) was a South Korean long-distance runner. He competed in the marathon at the 1948 Summer Olympics and the 1952 Summer Olympics.
Hong won the first Son Kee-chung World Championship Chosun Ilbo Marathon. He later served as the director of the Monopoly Bureau, the CEO of Namyang Ink, and the director of the Jeong Jin-gi Media and Culture Foundation. Hong died on 13 September 2011, at the age of 86.