Brigham Henry Roberts (March 13, 1857 - September 27, 1933) was born in Warrington, a manufacturing town of Lancashire, England. He emigrated to Davis County, Utah in 1866 and was baptized the following year into The Church of Jesus Christ of Latter-day Saints. He was ordained a Seventy March 8, 1877.

He practiced plural marriage; he married Sarah Louisa Smith in 1878, Celia Dibble in 1884, and Margaret Ship in 1890. In 1889 he served six months in Utah territorial prison for "unlawful cohabitation".

He served three proselyting missions: Iowa, Nebraska and southern states from 1880 to 1882; southern states from 1883 to 1886; and Britain from 1886 to 1888.

He was ordained to the First Council of Seventy on October 1888.

He was elected as a representative on the Democratic Party ticket to the fifty-sixth Congress, but the United States House of Representatives prohibited him from taking the seat to which he had been elected and denied Utah of its representative on the grounds of his practice of polygamy.

He was a prolific writer and author of some notable historical, biographical and theological works. He wrote A Comprehensive History of the Church of Jesus Christ of Latter-day Saints which was printed as a series in Americana (a monthly periodical published by the "American Historical Society" of New York) from June 1909 to July 1915 and updated to 1930 when it was published.

He has been celebrated by Latter-day Saints as "defender of the faith" for his apologetic writings of Mormonism. This title has been widely used for only one other Mormon: Hugh Nibley.