Prince of Persia: Warrior Within is a action-adventure and platforming video game sequel to the critically acclaimed Prince of Persia: The Sands of Time. Released for Xbox, PlayStation 2, GameCube and Microsoft Windows on December 2, 2004, Warrior Within was developed by Ubisoft Montreal and published by Ubisoft.

Warrior Within adds several new features to the base of its previous installment, the Sands of Time. Specifically, the options in combat are expanded, with the lack of the Dagger of Time, dual weapon wielding becomes a far more important part of battles thanks to the ability to steal enemies' weapons. Warrior Within has far darker tone than its predecessor with higher amounts of blood, sexuality and swearing and received a "Mature" rating from the ESRB due to the adult oriented content.

The game found greater sales success, though lower critical acclaim than its predecessor. As a result, a third game was produced and relate the following year. A port of Warrior Within, Prince of Persia: Revelations, was developed Pipeworks and released on December 6, 2005 for Sony's PlayStation Portable. The port includes additional content including three new areas not available in the original release. On November 19, 2010 and April 19th, 2011, Warrior Within was included in the "Prince of Persia Trilogy" alongside The Two Thrones and 'The Sands of Time in a HD Collection for the PlayStation 3 and PlayStation Network.