Saw 3D (also released as Saw: The Final Chapter) is a 2010 American 3D horror film directed by Kevin Greutert and written by Patrick Melton and Marcus Dunstan. A sequel to Saw VI (2009) and the seventh installment in the Saw film series, it stars Tobin Bell, Costas Mandylor, Betsy Russell, Sean Patrick Flanery, and Cary Elwes.

The plot follows author Bobby Dagen (Flanery), who, after falsely claiming to be a survivor of one of the games perpetrated by the Jigsaw Killer (Bell) in order to become a local celebrity, finds himself part of a real game where he must save his wife. Meanwhile, John Kramer's ex-wife Jill Tuck (Russell) informs internal affairs that rogue detective Mark Hoffman (Mandylor) is the man responsible for the recent Jigsaw games.

Two sequels to Saw VI were originally planned, but due to the decline in box office success for the film, Saw 3D was instead made as the final installment in the series. The plot for the originally planned Saw VIII was instead included in Saw 3D. David Hackl, director of Saw V (2008), was originally set to direct Saw 3D, but two weeks before filming, Greutert, who previously directed Saw VI, took over. The film was shot in Toronto, Ontario from February to April 2010 and was filmed in RealD 3D.

The film opened on October 29, 2010 in the United States and Canada. It received mostly negative reviews, but was a box office success, grossing $136.2 million worldwide. It was followed by an eighth film, Jigsaw, in 2017.