Saw IV
- annos singulos: 2007
- Patriam: United States of America
- genus: Horror, Thriller, Crime
- Studio: Twisted Pictures, Lionsgate
- keyword: pain, sadism, psychopath, fbi, victim, games, electric chair, doctor, torture, police officer, miscarriage, survival horror, death match, macabre, mind game, female corpse, death game
- Director: Darren Lynn Bousman
- cast: Tobin Bell, Costas Mandylor, Scott Patterson, Betsy Russell, Lyriq Bent, Athena Karkanis