Church of the Firstborn

Church of the Firstborn or Church of the First Born may refer to:

"Morrisite" Latter Day Saint sect

 * Church of the Firstborn (Morrisite), a Latter Day Saint sect formed in 1861 and extant until 1969

LeBaron Mormon fundamentalist group factions

 * Church of the Firstborn (LeBaron family)
 * Church of the Firstborn of the Fulness of Times, a Latter Day Saint sect formed in the 1950s by Joel LeBaron
 * Church of the First Born of the Lamb of God, founded in 1972 by Ervil LeBaron

Dalton Mormon fundamentalist group

 * Church of the First Born and General Assembly of Heaven, a Latter Day Saint sect formed by Terrill Dalton in 2004