The term placement marriage refers to arranged marriages between members of the Fundamentalist Church of Jesus Christ of Latter-Day Saints. Placement marriage is believed and practiced by members of the FLDS Church to show their commitment and obedience in order to obtain salvation for themselves and their parents; it might be considered “the most visible outward symbol of members’ devotion."

The Fundamentalist Church of Jesus Christ of Latter-Day Saints is a religious sect of the fundamentalist Mormon denominations whose members practice polygamy. It is variously defined as a cult, a sect, or a new religious movement.