Natural religion might have the following meanings:
A synonym for "natural theology"; religion based on reason and ordinary experience rather than supernatural revelation, although not necessarily denying it. This usage was popular in the 18th and 19th centuries— see, for example, David Hume's Dialogues Concerning Natural Religion.
In the modern study of religion it's used to refer to the notion that there is some sort of natural, spontaneous religious apprehension of the world common to all human beings, see
Referring to the religions of people prior to their Christianization, or Islamization.
This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.