Lucius Edwin Smith (January 29, 1822 in Williamstown, Massachusetts – February 10, 1900 in Groton, Massachusetts) was a United States lawyer, editor, clergyman and educator.
Smith graduated from Williams College in 1843, studied law in Williamstown, and was admitted to the bar in 1845.
From 1849 to 1854 he was assistant corresponding secretary of the American Baptist Missionary Union, Boston.
The next three years he spent in Newton Theological Seminary, where he graduated in 1857, and became in 1858 pastor of the Baptist church in Groton, Massachusetts, whence he was called in 1865 to the professorship of rhetoric, homiletics, and pastoral theology in Bucknell University, at Lewisburg, Pennsylvania.
Besides contributing numerous articles to periodicals, he edited Heroes and Martyrs of the Modern Missionary Enterprise (Hartford, Conn., 1852).