Thunder
- Yıl: 1929
- Ülke: United States of America
- Tür: Dram
- Stüdyo: Metro-Goldwyn-Mayer
- Anahtar kelime: train, silent film, flood, lost film, train engineer
- Yönetmen: William Nigh
- Oyuncular: Lon Chaney, Phyllis Haver, James Murray, Tom Keene, Frances Morris