The Mysterious Lodger
- År: 1914
- Land: United States of America
- Genre:
- Studio: Vitagraph Company of America
- Nøgleord: lost film
- Direktør: Maurice Costello, Robert Gaillard
- Cast: Maurice Costello, Constance Talmadge, Edwina Robbins, Helene Costello, Estelle Mardo, Thomas R. Mills