The Church of Jesus Christ of Latter-day Saints (LDS Church) has been subject to criticism and sometimes discrimination since its inception.

In the late 1820s, criticism centered around Joseph Smith stating he had been led to a set of golden plates from which he said the Book of Mormon was translated. In the 1830s, one of several criticisms was for Smith's handling of a banking failure in Kirtland, Ohio. After the Mormons migrated west, there was fear and suspicion about the LDS Church's political and military power in Missouri, culminating in the 1838 Mormon War and the infamous Mormon Extermination Order by Governor Lilburn Boggs. In the 1840s, criticism of the church centered on its theocratic aspirations in Nauvoo, Illinois. Criticism of the practice of plural marriage and other doctrines taught by Smith were published in the Nauvoo Expositor. Opposition led to a series of events culminating in the death of Smith and his brother while jailed in 1844.

Criticism of the Church of Jesus Christ of Latter-day Saints

As the church began openly practicing plural marriage under Brigham Young during the second half of the 19th century, the church became the target of nationwide criticism for that practice, as well as for the church's theocratic aspirations in Utah Territory. Young introduced policies in 1852 that discriminated against black men and women of African descent which were not reversed until 1978. Beginning in 1857, the church also came under significant media criticism after the Mountain Meadows Massacre in southern Utah.

Criticism of the Church of Jesus Christ of Latter-day Saints

Academic critics have questioned the legitimacy of Smith as a prophet as well as the historical authenticity of the Book of Mormon and the Book of Abraham. Criticism has expanded to include claims of historical revisionism, homophobia, racism, and sexist policies. Notable 20th-century critics include Jerald and Sandra Tanner and historian Fawn Brodie. Evangelical Christians continue to argue that Smith was either fraudulent or delusional.

Criticism of the Church of Jesus Christ of Latter-day Saints

Mormon apologetics organizations, such as the Foundation for Apologetic Information & Research (FAIR) and the Foundation for Ancient Research and Mormon Studies (FARMS), work to counter these criticisms. These organizations mostly focus on providing and discussing evidence supporting the claims of Smith and the Book of Mormon. Scholars and authors such as Hugh Nibley, Daniel C. Peterson, Orson Scott Card, and James E. Talmage are well-known apologists within the church.

Critics

Notable early critics of Mormonism included Lucy Harris, Abner Cole, Eber D. Howe, and Thomas C. Sharp. Notable modern critics of the LDS Church include Jerald and Sandra Tanner, Richard Abanes, Richard and Joan Ostling, historian Fawn M. Brodie, Jeremy Runnells, and John Dehlin. Expansion of Internet use also provided a new forum for critics.

The church's 2008 support of California's Proposition 8 sparked heated debate and protests by gay-rights organizations. Affirmation is a group of current and former members of the LDS Church who have criticized the church's policies on homosexuality. Christian Apologetics and Research Ministry is a Christian organization that has criticized the church's theology. The Institute for Religious Research is an organization that has criticized the church, in particular the Book of Abraham. Numerous other organizations maintain web sites that criticize the church.

Joseph Smith and the early church (1820–1844)

Polygamy

Polygamy is perhaps the most controversial early Mormon practice, and was a key contributing factor for Smith's murder. Under heavy pressure — Utah would not be accepted as a state if polygamy was practiced — the church formally and publicly renounced the practice in 1890. Utah's statehood soon followed. However, plural marriage remains a divisive issue, as despite the official renunciation of 1890, it still has sympathizers, defenders, and semi-secret practitioners.

Sarah Pratt, first wife of apostle Orson Pratt, in an outspoken critique of Mormon polygamy, said that polygamy:

completely demoralizes good men and makes bad men correspondingly worse. As for the women—well, God help them! First wives it renders desperate, or else heart-broken, mean-spirited creatures. Pratt ended her marriage to husband Orson Pratt in 1868 because of his "obsession with marrying younger women" (at age 57, Orson Pratt married a sixteen-year-old girl, his tenth wife, younger than his daughter Celestia). Sarah Pratt lashed out at Orson in an 1877 interview, stating:

Here was my husband, gray headed, taking to his bed young girls in mockery of marriage. Of course there could be no joy for him in such an intercourse except for the indulgence of his fanaticism and of something else, perhaps, which I hesitate to mention.