John Leadley Dagg (1794–1884), born in Loudoun County, Virginia was an American Baptist theologian. He was associated with the Southern Baptists.
Biography
Dagg had a limited education, was near-blind, and was physically disabled. He converted to Christianity at age 15 and served briefly in the War of 1812. Dagg was baptized in 1812 then studied medicine for three years. He was ordained as a minister in November 1817 and eventually served as the pastor of the Fifth Baptist Church in Philadelphia for nine years. He then moved to Tuscaloosa, Alabama and served as the president of the Alabama Female Athenaeum for eight years. Dagg left Tuscaloosa in January 1844 to become president of Mercer University.