William Thompson (1775 Cork City, - March 28, 1833 Rosscarbery, Co. Cork) was an Irish political and philosophical writer and social reformer, developing from utilitarianism into an early critic of capitalist exploitation whose ideas influenced the Cooperative, Trade Union and Chartist movements as well as Karl Marx. Born into the Anglo-Irish Ascendancy of wealthy landowners and merchants of Cork society, his attempt to will his estate the cooperative movement after his death sparked the longest court case in Irish legal history as other branches of his family fought to have the will annulled.
William Thompson was an American criminal whose deceptions caused the term "confidence man" to be coined.
William Thompson (1805–1852) was an Irish naturalist celebrated for his founding studies of the Natural History of Ireland. He was especially interested in ornithology.
William John "Willie" Thompson (b. 26 October, 1939) is a Northern Ireland Ulster Unionist Party politician. He served as member of Parliament for Tyrone West from 1997 to 2001. He was one of the UUP members opposed to the Good Friday Agreement.
William C. Thompson, Jr. is the current comptroller in the Government of New York City. He was first elected to the post in 2001 as a Democrat and was re-elected in 2005 to a second four-year term.
William Thompson (November 10, 1813 - October 6, 1897) was a politician from Iowa during its transition from territory to statehood.
William Abednego Thompson (18 October 1811 – 23 August 1880) was an English bare-knuckle boxer.
William Thompson (June 17 1786 – January 18 1860) was a farmer and political figure in Upper Canada.
William Thompson (c. 1725 or 1736? - 1781) was born in Ireland and emigrated to Pennsylvania. During the French and Indian War Thompson served as the captain of a troop of mounted militia. In 1775 he was made a colonel and was sent to Massachusetts to help in the defense of Boston following the Battle of Bunker Hill.
William Thompson was a soldier in the U.S. Army during the Korean War. He was awarded the Medal of Honor for his actions on August 6, 1950.