The Mysterious Lodger
- Sal: 1914
- Welat: United States of America
- Genre:
- Studio: Vitagraph Company of America
- Keyword: lost film
- Serek: Maurice Costello, Robert Gaillard
- Avdan: Maurice Costello, Constance Talmadge, Edwina Robbins, Helene Costello, Estelle Mardo, Thomas R. Mills
