The Manhood Suffrage League was a nineteenth-century ultra-radical and, later, socialist club.
They included Maltman Barry, Johann Eccarius, Robert Gammage, John Bedford Leno, Charles Murray, James Murray, John Rogers, William Townshend and Henry Travis.
In 1877, Maltman Barry, by then the club's secretary, became an outspoken supporter of the Tory campaign to intervene in the Russo-Turkish War.
The group became influential in the Marylebone Central Democratic Association and the Social and Political Education League.
League members Murray, J. D. Butler and James MacDonald all subsequently became leading figures in the Social Democratic Federation.