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The Thracian religion comprised the mythology, ritual practices and beliefs of the Thracians, a collection of closely related ancient Indo-European peoples who inhabited eastern and southeastern Europe and northwestern Anatolia throughout antiquity and who included the Thracians proper, the Getae, the Dacians, and the Bithynians.
The Thracians themselves did not leave an extensive written corpus of their mythology and rituals, but information about their beliefs is nevertheless available through epigraphic, iconographic and archaeological sources, as well as through ancient Greek writings.