Chaos may refer to:
- Dark Souls:
- Bed of Chaos - A boss, the remnants of the former Witch of Izalith and one of the bearers of the Lord Souls.
- Chaos (mechanic) - A gameplay mechanic.
- Chaos (upgrade path) - A weapon upgrade path.
- Chaos Blade - A katana created from the Soul of Quelaag.
- Chaos Flame Ember - A key item that allows modification of weapons down the Chaos path.
- Flame of Chaos - A concept. The result of an attempt to recreate the First Flame.
- Dark Souls II:
- Chaos Blade - A katana created from the Old Witch Soul.
- The Old Chaos - An area within Dark Souls II: Crown of the Ivory King.
- Dark Souls III:
- Chaos Blade - A katana.
- Chaos Gem - An upgrade material that adds Fire damage to a weapon when infused, while also adding Intelligence and Faith scaling to it.