Fatty’s Faithful Fido
- Taon: 1915
- Bansa: United States of America
- Genre: Comedy
- Studio: Keystone Film Company
- Keyword: dog, chinese laundry, short film
- Direktor: Roscoe 'Fatty' Arbuckle
- Cast: Roscoe 'Fatty' Arbuckle, Minta Durfee, Al St. John, Frank Hayes, Charles Lakin, Dan Albert