American stage and motion-picture director, producer, and writer.

Logan was active in theatricals while attending Princeton University, where he studied from 1927 to 1931, and he studied acting under Konstantin Stanislavsky (Stanislavsky, Konstantin Sergeyevich) in Moscow on a scholarship. He made his Broadway debut as an actor in 1932 and soon began working as an assistant stage manager and then as a director. His initial directorial successes on Broadway were On Borrowed Time (1938), I Married an Angel (1938), and By Jupiter (1942), and he began a fruitful collaboration with the composer Richard Rodgers (Rodgers, Richard) in the latter play. After serving in the U.S. Air Force during World War II, Logan directed the highly successful musical Annie Get Your Gun (1946), which was produced by Rodgers and Oscar Hammerstein and composed by Irving Berlin. Logan cowrote and directed Mister Roberts (1948) and then cowrote, coproduced, and directed the musical South Pacific (1949), which won the Pulitzer Prize for drama. Among the other popular plays that he directed were Happy Birthday (1945), John Loves Mary (1946), Picnic (1953), Fanny (1954), and The World of Suzie Wong (1958). Logan directed the highly acclaimed motion-picture version of South Pacific (1958) as well as several other popular films, among them Bus Stop (1956), Sayonara (1957), Fanny (1961), Camelot (1967), and Paint Your Wagon (1969).