An Australian Aboriginal sacred site is a place deemed significant and meaningful by Aboriginal Australians based on their beliefs. It may include any feature in the landscape, and in coastal areas, these may lie underwater. The site's status is derived from an association with some aspect of social and cultural tradition, which is related to ancestral beings, collectively known as Dreamtime, who created both physical and social aspects of the world. The site may have its access restricted based on gender, clan or other Aboriginal grouping, or other factors.

Australian Aboriginal religion and mythology is the sacred spirituality represented in the stories performed by Aboriginal Australians within each of the language groups across Australia in their ceremonies. Aboriginal spirituality includes the Dreamtime, songlines, and Aboriginal oral literature.