The word Mormon most colloquially denotes an adherent, practitioner, follower, or constituent of Mormonism in restorationist Christianity. Mormon also commonly refers, specifically, to a member of the Church of Jesus Christ of Latter-day Saints, which is often colloquially, but imprecisely, referred to as the Mormon Church. In addition, the term Mormon may refer to any of the relatively small sects of Mormon fundamentalism, and any branch of the Latter Day Saint movement that recognizes Brigham Young as the successor to founder Joseph Smith. The term Mormon applies to the religion of Mormonism, as well as its culture, texts, and art.

The Latter Day Saint movement is the collection of independent church groups that trace their origins to a Christian Restorationist movement founded by Joseph Smith in the late 1820s.