Indigenous Religions. The word indigenous refers to anything that is native to a particular geographical region. This includes people, cultures, languages, or species of plants or animals.The Aborigines of Australia, for example, are an indigenous people, in contrast to the European settlers who arrived on the continent long after.Similarly, American Indians are the indigenous peoples of North America.his includes people, cultures, languages, or species of plants or animals. The Aborigines of Australia, for example, are an indigenous people, in contrast to the European settlers who arrived on the continent long after. Similarly, American Indians are the indigenous peoples of North America.