Thomas Dalton (1794–1883) was a free African American raised in Massachusetts who was dedicated to improving the lives of people of color. He was active with his wife Lucy Lew Dalton, Charlestown, Massachusetts, in the founding or ongoing activities of local educational organizations, including the Massachusetts General Colored Association, New England Anti-Slavery Society, Boston Mutual Lyceum, and Infant School Association, and campaigned for school integration, which was achieved in 1855.