The Last Castle is a 2001 American action drama film directed by Rod Lurie, starring Robert Redford, James Gandolfini, Mark Ruffalo and Delroy Lindo. The film portrays a struggle between inmates and the warden of a military prison, based on the United States Disciplinary Barracks at Fort Leavenworth.

A highly decorated U.S. Army Lieutenant General, court martialed and sentenced for insubordination, challenges the prison commandant, a colonel, over his treatment of the prisoners. After mobilizing the inmates, the former general leads an uprising aiming to seize control of the prison.

The film was released in the United States on October 19, 2001. It received mixed reviews from critics and was a financial disappointment, grossing just $27 million against its $72 million budget.