Saw VI is a 2009 American horror film directed by Kevin Greutert (in his directorial debut) and written by Patrick Melton and Marcus Dunstan. A sequel to Saw V (2008) and the sixth installment in the Saw film series, it stars Tobin Bell, Costas Mandylor, Betsy Russell, Mark Rolston, Peter Outerbridge, and Shawnee Smith.

Similar to its predecessor, Saw VI maintains the focus on the posthumous effects of the Jigsaw Killer (Bell) and the progression of his successor, Detective Lieutenant Mark Hoffman (Mandylor). The plot follows insurance executive William Easton (Outerbridge), who must complete a series of deadly "games" set up by Hoffman in order to rescue his employees and family. Meanwhile, the FBI comes to suspect that Agent Peter Strahm, who was framed by Hoffman as being Jigsaw's successor, was not actually Jigsaw's accomplice and re-opens the investigation, drawing Hoffman into motion to protect his secret identity.

Greutert, who had served as editor for the previous Saw films, made his directorial debut with Saw VI. Melton and Dunstan, who wrote the screenplays for Saw IV (2007) and Saw V, returned to write the screenplay, and Charlie Clouser, who composed all previous films, returned to compose the score. Shot on a budget of $11 million, it was filmed in Toronto from March to May 2009.

Saw VI was released on October 23, 2009 and ended up grossing over $69.8 million globally. It was the lowest-grossing film in the Saw franchise at the time, but it was still considered a financial success given its low budget. The film received mixed reviews. A sequel, Saw 3D, was released the following year in 2010.

Predatory lenders Eddie and Simone are locked in head harnesses with screws aimed at their temples, and have one minute to each cut flesh from their bodies and weigh the scale in their favor to survive. Eddie, who is overweight, slices several chunks of fat from his stomach, but is killed after Simone chops off her arm and tips the scale before the timer expires. The game is observed by Mark Hoffman, who has just escaped from the trap that killed FBI agent Peter Strahm. He then uses Strahm's severed hand to plant his fingerprints at the scene. The police and FBI agent Dan Erickson investigate alongside FBI agent Lindsey Perez, whose survival was concealed by Erickson for her protection. During Eddie's autopsy, Dr. Heffner reveals that the blade used to cut the puzzle piece from his remains is the same blade used years earlier on Seth Baxter. Perez and Erickson reopen the investigation, and analyze the videotape found at the scene.

Hoffman arrives at Jill Tuck's clinic and demands five envelopes containing photographs of the following game's test subjects from the box left to her in John Kramer's last request. The game involves health insurance executive William Easton and his associates, whose company's dubious business policy turned down their clients' coverage for medical treatment, one of them being John Kramer. After Hoffman abducts them to an abandoned zoo, William and his janitor, Hank, are suspended in chains with large metal vises that will crush their bodies each time they breathe in their oxygen masks. The vise kills Hank, and William proceeds to his other three tests to unlock the remaining bomb shackles from his limbs. The second test at an aquarium forces William to save his middle-aged secretary Addy over his file clerk Allen, who hangs to death from a barbed-wire noose. At the boiler room, William releases his lawyer Debbie, who attacks him to retrieve a key inside his body and unlock a speargun attached to her harness. He fights her off until the device kills her. William's final test involves his six subordinates chained to a rotating roundabout where he is only able to save two of them from a mounted shotgun. The game is viewed by mother Tara with her teenage son Brent, and news journalist Pamela Jenkins from two opposite animal enclosures below the observation room.

During the game, Hoffman is called away by Erickson to the audio lab after obtaining the videotape. Erickson, now aware of Strahm's demise, confronts Hoffman after discovering the abnormalities found in Strahm's fingerprints at the time of his death. When Hoffman's voice is unscrambled from the tape, he kills Erickson, Perez, and a technician. Hoffman returns to the observation room and finds the letter he wrote to Amanda Young, who indirectly instigated Cecil Adams' robbery at Jill's clinic that resulted in her miscarriage; Hoffman used this knowledge to blackmail Amanda into killing Dr. Lynn Denlon. The letter was found by Pamela and given to Jill, who then uses it to ambush Hoffman. Jill, who had the remaining contents from her box including a sixth envelope containing Hoffman's photo, restrains him and locks a modified reverse bear trap to his head, posthumously fulfilling John's will to test Hoffman after his death.

William reaches the end of his path and enters the cages where he reunites with Pamela, who is his sister. He is confronted by Tara and Brent, the widow and son of Harold Abbott, a former client who succumbed to his heart disease after William denied his medical request. John's videotape informs Tara to decide William's fate by using the lever in her cell connecting to tanks of hydrofluoric acid from each cage. As William and Pamela try to persuade the family, an enraged Brent pulls the lever, releasing a platform of needles that kills William by injecting acid into his body. After Jill leaves, Hoffman breaks his wrist to free himself and gets out of the trap just as it activates, ripping open his right cheek in the process.