Secular religion is a term used to describe ideas, theories or philosophies which involve no spiritual component yet possess qualities similar to those of a religion. Such qualities include such things as dogma, a system of indoctrination, the prescription of an absolute code of conduct, an ideologically tailored creation story and end-times narrative, designated enemies, and unquestioning devotion to a higher authority. The secular religion operates in a secular society by filling a role which would be satisfied by a church or another religious authority. The idea of secular religion is similar to the Judeo-Christian concept of idolatry.
Social philosopher Raymond Aron notably uses the term to refer to Communism. Likewise, philosopher of science Michael Ruse has made use of the term in discussing evolution theory. Similarly Thomas Frank suggests that the free market has become a secular religion in the United States. 
- Cult of personality
- Morality without religion
- Political correctness
- State atheism
- Secular ethics
- Separation of church and state
- Aron, Raymond. The Opium of the Intellectuals. London: Secker & Warburg, 1957, pp. 265-294.
- Ruse, Michael. "Is Evolution a Secular Religion?". Science, 7 March 2003.
- Frank, Thomas. "The Rise of Market Populism: America's New Secular Religion", The Nation, October 30, 2000.