The Battle of Ain Jalut (or Ayn Jalut, in Arabic: the "Spring of Goliath") takes place on September 3, 1260 between Muslim Mamluks and the Mongols in the southeastern Galilee, in the Jezreel Valley, not far from Zir'in.

The battle marks the high-water point of Mongol conquests, and is the first time a Mongol advance has ever been permanently beaten back in direct combat on the battlefield.After previous battlefield defeats, the Mongols had always returned and avenged their loss, ultimately defeating their enemies.

The Battle of Ain Jalut marks the first time they are unable to do so.

The Mongol Ilkhanate leader Hulagu Khan is not able to advance into Egypt, and the Khanate he establishes in Persia is only able to defeat the Mamluks once in subsequent expeditions, briefly reoccupying Syria and parts of Galilee for a few months in 1300.