My Brother Jonathan is a 1948 British drama film directed by Harold French and starring Michael Denison, Dulcie Gray, Ronald Howard and Beatrice Campbell. It is adapted from the 1928 novel of the same name by Francis Brett Young, later turned into a television series of the same title.

John Michael Terence Wellesley Denison was an English actor. He often appeared with his wife, Dulcie Gray, with whom he featured in several films and more than 100 West End theatre productions.