The Lone Defender
- Ano: 1930
- País: United States of America
- Xénero: Action
- Estudo: Mascot Pictures
- Palabra clave: german shepherd, movie serial, dog hero
- Director: Richard Thorpe
- Reparto: Rin-Tin-Tin, Walter Miller, June Marlowe, Josef Swickard, Buzz Barton, Lee Shumway
