Living Legend is an achievement in Halo: Combat Evolved Anniversary and Halo: The Master Chief Collection. It is awarded for completing the campaign on Legendary. It is worth 50 Gamerpoints in the orginal game; in The Master Chief Collection it is only worth 30 points. Receiving this achievement also unlocks the "Birth of a Spartan" and "Believe in a Hero" achievements if the player hasn't completed the campaign on Normal and Heroic, respectively.
It is represented by the Legendary difficulty shield in the original game; in The Master Chief Collection it is represented by concept art of The Truth and Reconciliation.