The Secret Kingdom
- Blwyddyn: 1917
- Gwlad: United States of America
- Genre: Adventure, Romance
- Stiwdio: Star Film Company, Vitagraph Company of America
- Allweddair: movie serial, presumed lost
- Cyfarwyddwr: Charles Brabin, Theodore Marston
- Cast: Charles Richman, Dorothy Kelly, Joseph Kilgour, Arline Pretty, William R. Dunn, De Jalma West
