Final Fantasy XIV: Endwalker  is the fourth expansion pack to Final Fantasy XIV, a massively multiplayer online role-playing game (MMORPG) developed and published by Square Enix for Microsoft Windows, macOS, PlayStation 4, and PlayStation 5. It was released on December 7, 2021, over two years after Shadowbringers, the previous expansion, with its production delayed by the COVID-19 pandemic. Like its predecessors, Naoki Yoshida served as director and producer and Masayoshi Soken composed the soundtrack. The expansion pack was released as a standalone product for current players; for new players, the "Complete Edition" that originally launched with Heavensward was updated to include all expansions including Endwalker.

In Endwalker, players as the Warrior of Light travel to the secluded nation of Sharlayan to seek help in handling the approaching Final Days, an apocalyptic event that threatens to destroy the entire world. Meanwhile, Zenos, the mad son of the former emperor of Garlemald, has murdered his father and now seeks a final confrontation with the Warrior of Light. Zenos is assisted by the nihilistic Ascian Fandaniel, who wants the Final Days to occur so everyone, himself included, is wiped out. The story has been marketed as the "finale" of the Hydaelyn–Zodiark arc, drawing the current ongoing story since A Realm Reborn to a close, with an entirely new story beginning in the major patches following release, in contrast to past expansion's stories continuing into midway through the post-release patches. In addition to adding new areas, the expansion pack increases the level cap to 90 and debuts two new Final Fantasy "jobs", Sage and Reaper among other changes.