Secrets of the Unknown: Jack the Ripper
- Release Year
 - 1987
 - Runtime
 - 26m
 - Genres
 - Documentary
 
- Directed By
 - Graeme Whifler
 - Erik Nelson
 

Jack the Ripper explores theories surrounding one of the most notorious unsolved crimes of modern times. Between August 7 and November 10, 1888, Jack the Ripper terrorized London, killing at least seven women. Was the murderer one man or three?

