One-Round Hogan is a lost 1927 American synchronized sound boxing-drama film produced and distributed by Warner Bros. and directed by Howard Bretherton. While the film has no audible dialog, it was released with a synchronized musical score with sound effects using the Vitaphone sound-on-disc process. The film starred Monte Blue and Leila Hyams. Blue also appears in the 1925 prequel called Hogan's Alley, written by Darryl F. Zanuck. Turn of the 20th century boxing champ James J. Jeffries had a featured role in this movie. ()