Religion in the Marshall Islands is as of 2009 dominated by major Christian faiths introduced by Western missionaries since around 1857. Major religious groups in the Republic of the Marshall Islands are United Church of Christ (formerly Congregational) (51.5%), Assemblies of God (24.2%), Roman Catholic church (8.4%), The Church of Jesus Christ of Latter-day Saints (Mormons) (9.5%), Bukot Nan Jesus (also known as Assembly of God Part Two) (2.2%), Baptist (1.0%), Seventh-day Adventists (0.9%), Full Gospel (0.7%), Baha'i Faith (0.6%). Persons without any religious affiliation account for a small percentage of the population. The Jehovah's Witnesses are believed to have a few hundred practitioners. There are fewer than 20 people of Jewish faith and fewer than 20 members of the Ahmadiyya Muslim Community.
Foreign missionaries are present and operate freely. Religious schools are operated by the Roman Catholic Church, United Church of Christ, Assemblies of God, Seventh-day Adventist Church, Bukot Non Jesus, and the Baptist Church. The Constitution provides for freedom of religion, and the Government generally respects this right in practice. In 2007, the US government received no reports of societal abuses or discrimination based on religious belief or practice.