The Secret Door
- Blwyddyn: 1964
- Gwlad: United Kingdom, United States of America
- Genre: Thriller
- Stiwdio: Dorton Productions, Tifeshire Productions
- Allweddair:
- Cyfarwyddwr: Gilbert Kay
- Cast: Robert Hutton, Sandra Dorne, Peter Illing, Peter Allenby, George Pastell, Martin Benson
