Hubert Henry Harrison (April 27, 1883 – December 17, 1927) was a West Indian-American writer, orator, educator, critic, race and class conscious political activist, and radical internationalist based in Harlem, New York. He was described by activist A. Philip Randolph as "the father of Harlem radicalism" and by the historian Joel Augustus Rogers as "the foremost Afro-American intellect of his time." John G. Jackson of American Atheists described him as "The Black Socrates".