Chaos

 is an ambiguous term. It can refer to:
 * Chaos, also known as Ionthas, a powerful deity from the Dragonlance campaign setting
 * a philosophical alignment, see chaotic good, chaotic evil and especially in its pure form chaotic neutral

See further

 * Limbo, an outer plane from the Great Wheel cosmology the represents the alignment chaotic neutral and is also called "the Ever-Changing Chaos of Limbo"
 * Elemental Chaos, a fundamental plane in Forgotten Realms' World Axis cosmology
 * Xaos, the gate town at the Outlands' Gate to Limbo
 * the Xaositects, a planar faction following the principle of chaos
 * SRD:Chaos Domain
 * SRD:Wave Of Chaos (Divine Ability)
 * SRD:Chaos Diamond
 * SRD:Chaos Beast
 * SRD:Chaos Hammer
 * SRD:Cloak of Chaos
 * SRD:Detect Chaos
 * SRD:Dispel Chaos
 * SRD:Magic Circle against Chaos
 * SRD:Protection from Chaos
 * SRD:Word of Chaos
 * SRD:Neutral (Law-Chaos) Creatures
 * Elemental Plane of Chaos (3.5e Location)
 * Chaos Elemental (3.5e Monster)
 * Denizen of Chaos (3.5e Race)
 * Armor of Chaos (3.5e Feat)