The Lone Defender
- Annu: 1930
- Paese: United States of America
- Genre: Action
- Studio: Mascot Pictures
- Parolla chjave: german shepherd, movie serial, dog hero
- Direttore: Richard Thorpe
- Cast: Rin-Tin-Tin, Walter Miller, June Marlowe, Josef Swickard, Buzz Barton, Lee Shumway
