Gunnm: Mars Chronicle (銃夢火星戦記, Ganmu Kasei Senki; lit. "Gun Dream: Martian War Chronicles"), also known in its English translation as Battle Angel Alita: Mars Chronicle, is a Japanese science fiction manga series written by Yukito Kishiro and, as sequel to Battle Angel Alita: Last Order, is the third installment of the Battle Angel Alita series.

The story of Mars Chronicles alternates between two timelines: ES 594, three years directly after the event of Last Order, when Alita returns to her home planet Mars for the first time in centuries; and ES 373, during Alita's childhood as the young cyborg girl Yoko trying to survive in the war-torn Mars.