Samuel Harrison (1818 – August 11, 1900) was a black American abolitionist, former slave, preacher, and Army chaplain who operated largely in and around New England.

He was a staunch writer and orator against slavery and racism, eventually convincing President Abraham Lincoln to enact equal pay for black chaplains.

Harrison resigned from the church and worked for the National Freedman's Relief Society during the American Civil War charged with helping the blacks on Georgia's sea islands.

[4] In July 1863, the 54th Regiment Massachusetts Volunteer Infantry, the first all-black unit in the North during the Civil War, spearheaded the assault on Fort Wagner in Charleston, South Carolina.

Harrison protested the unequal pay gap between white and black chaplains.

Samuel Harrison: His Life Story, printed in 1899, and in 1872 returned to pastor the Second Congregational Church of Pittsfield.

The following tablet was erected in the Second Congregational Church in Pittsfield: In Memory of the Reverend Samuel Harrison, 1815-1894.

A Wise Leader, an Honored Citizen, an Ardent Patriot, a beloved Messenger of the Lord, he wrought well for his People, his Country and his God.