O Jung-hup (1910–1939) was a North Korean military officer, who, according to the North Korean regime, fought the Japanese with Kim Il-sung.
O was born into a poor family in Seson-ri, Onsong County of North Hamgyong Province, on 10 July 1910.
He died in the Liukesong battle in Dunhua County on 17 December 1939.