Harold William Henry, S.S.C., 현 하롤드, (July 11, 1909 – March 1, 1976) was an American-born Catholic missionary and bishop.

As a member of the Missionary Society of St. Columban he was assigned to missions in South Korea.

Born in Northfield, Minnesota, Harold Henry was ordained a priest on December 21, 1932, for the Missionary Society of St. Columban.

On January 26, 1957, he was named the titular bishop of Corydala and Vicar Apostolic of Kwangju.

Pope Paul VI named Henry the Apostolic Administrator of the Diocese of Cheju on June 28, 1971.