Mormon, a member of any of several denominations and sects, the largest of which is the Church of Jesus Christ of Latter-day Saints, that trace their origins to a religion founded by Joseph Smith in the United States in about 1830. The religion these churches practice is often referred to as Mormonism.

Mormon, Book of, work accepted as holy scripture, in addition to the Bible, in the Church of Jesus Christ of Latter-day Saints and other Mormon churches. First published in 1830 in Palmyra, N.Y., it was thereafter widely reprinted and translated. Mormons hold that it is a divinely inspired work revealed to and translated by the founder of their religion, Joseph Smith.

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