Hennessy
- Yıl: 1975
- Ülke: United Kingdom, United States of America
- Tür: Gerilim, Dram, Aksiyon
- Stüdyo: American International Pictures
- Anahtar kelime: revenge, ira (irish republican army), war hero, assassination plan
- Yönetmen: Don Sharp
- Oyuncular: Rod Steiger, Lee Remick, Richard Johnson, Trevor Howard, Peter Egan, Eric Porter