Gettysburg is a 1993 American epic war film about the Battle of Gettysburg in the American Civil War. Written and directed by Ronald F. Maxwell, the film was adapted from the 1974 historical novel The Killer Angels by Michael Shaara. It features an ensemble cast, including Tom Berenger as James Longstreet, Jeff Daniels as Joshua Chamberlain, Martin Sheen as Robert E. Lee, Stephen Lang as George Pickett, and Sam Elliott as John Buford.

Originally filmed as a miniseries for TNT, Gettysburg received a limited theatrical release from New Line Cinema under the direction of Ted Turner, who owned both entities. At 254 minutes (4 hours and 14 minutes), it is the longest film released theatrically by a major film studio in the United States. It received positive reviews from critics, but grossed only $12.7 million on a $20 million budget. It was however considered a hit regardless, due to its immediate TNT premiere ratings success, and subsequent home video sales. A prequel entitled Gods and Generals was released in 2003, also directed by Maxwell and featuring many returning cast members.