The Secret of the Purple Reef
- Jahr: 1960
- Land: United States of America
- Genre: Drama, Krimi, Abenteuer
- Studio: Associated Producers (API)
- Stichwort: based on novel or book, deadly, deep
- Direktor: William Witney
- Besetzung: Jeff Richards, Richard Chamberlain, Margia Dean, Peter Falk, Terence de Marney, Robert Earl Jones