Theodore Doughty Miller (September 19, 1835 – March 1, 1897) was a Baptist preacher from Philadelphia, Pennsylvania in the late 19th century.

He had an older brother who went to California during the gold rush and died in the 1862 sinking of the SS Golden Gate.

He also helped form a young men's association and organized a choir and Sunday school of the local Mt.

In 1856 he left Trenton to take charge of a public school at Newburgh, New York, where he finally joined the Baptist church along with his wife, both being baptized February 22, 1857, in the Hudson River.

In spite of this, he was chosen as teacher and then superintendent of the Sunday school and made a trustee and deacon of the church.

He attended the American Baptist Missionary Society Convention at Philadelphia in 1858[2] where he along with Leonard Grimes, William Spellman, and Sampson White pushed the organization to oppose slavery.

In Albany, Miller supported anti-slavery efforts and served as secretary of the Irrepressible Conflict Society for Human Rights organized immediately following the execution of John Brown in December 1859.

[7] In 1894, Miller was elected moderator of the Philadelphia Baptist Association convention,[8] the first black man ever elected to that position[9] He also submitted articles to newspapers, including a pre-Emancipation Proclamation poem, "God Never Made a Sin", which was in the Louisville Newspaper February 10, 1849, and included the refrain, "but [God] never, never made a slave.