William Putnam McCabe (1776–1821) was an emissary and organiser in Ireland for the insurrectionary Society of United Irishmen. Facing multiple indictments for treason as a result of his role in fomenting the 1798 rebellion, he effected a number of daring escapes but was ultimately forced by his government pursuers into exile in France. With the favour of Napoleon, he established a cotton factory at Rouen while remaining active as a member of a new United Irish Directory. He worked to assist the Robert Emmett in coordinating a new rising in Ireland in 1803, and later had contact with the Spencean circle in London implicated in both the Spa Field riots and the Cato Street Conspiracy.