Final Fantasy Tactics: The War of the Lions ( Fainaru Fantajī Takutikusu Shishi Sensō?) is a tactical role-playing game developed by Square Enix and published by Square Enix for the Sony PlayStation Portable handheld game console. The game is an updated version of Final Fantasy Tactics for the PlayStation video game console.

The War of the Lions is the second announced game in the "Ivalice Alliance" campaign, a promotion of video games set in the Ivalice fictional world. The first is Final Fantasy XII: Revenant Wings, a sequel to Final Fantasy XII, for the Nintendo DS, and the third is Final Fantasy Tactics A2: Grimoire of the Rift.