
Mormon fundamentalist leaders are those who lead a Mormon fundamentalist group.

John Horne Blackmore, a school teacher and principal by training, was the first leader of what became the Social Credit Party of Canada, a political party in Canada that promoted the social credit theories of monetary reform.

Sister Wives is an American reality television series broadcast on TLC that premiered on September 26, 2010. The show documents the life of a polygamist family, which includes father Kody Brown, his four wives and their 18 children. The family began the series living in Lehi, Utah but has since moved to Las Vegas, Nevada in 2011 and the unincorporated township of Baderville, Arizona in mid-2018.

Thomas Arthur Green is a Mormon fundamentalist in Utah who is a practitioner of plural marriage. After a high-profile trial, Green was convicted by the state of Utah on May 18, 2001, of four counts of bigamy and one count of failure to pay child support. This decision was upheld by the Utah State Supreme Court in 2004. He was also convicted of child rape, on the basis that one of his wives had his child at the age of 13. The wife in question was his stepdaughter before they were married, she was the daughter of his first polygamous wife. In total he served six years in prison and was released in 2007.

Ogden Wedlund Kraut was an American author who wrote about his independent Mormon fundamentalist beliefs. He was set apart as a "seventy" by Joseph W. Musser, a leader of the early Mormon fundamentalist movement. He also served as a missionary in The Church of Jesus Christ of Latter-day Saints in southern California. He was one of the last missionaries to serve in the church "without purse or scrip", and wrote a book about his experiences. He wrote books, some self-published, on Mormon fundamentalist topics. His 95 Theses, named after a document by Martin Luther, includes specific charges against doctrinal changes in the LDS Church.

Alma Dayer LeBaron Sr. was a Mormon fundamentalist who was the father of a number of leaders and church founders in Mormon fundamentalism.

"Lost boys" is a term used for young men who have been excommunicated or pressured to leave polygamous Mormon fundamentalist groups such as the Fundamentalist Church of Jesus Christ of Latter Day Saints (FLDS). They are alleged to be pressured to leave by adult men to reduce competition for wives within such sects, usually when they are between the ages of 13 and 21.

Elizabeth Ann Smart was kidnapped at age fourteen on June 5, 2002, by Brian David Mitchell from her home in the Federal Heights neighborhood of Salt Lake City, Utah, United States. She was held captive by Mitchell and his wife, Wanda Barzee, on the outskirts of Salt Lake City, and later, in San Diego County, California. Her captivity lasted approximately nine months before she was discovered in Sandy, Utah, approximately 18 miles (29 km) from her home.