William Stewart
William, Willie, Will, Bill or Billy Stewart may refer to:
Entertainment
- Jack Williamson or Will Stewart, American science fiction writer
- William G. Stewart, English television producer, director and presenter of Fifteen to One
- Billy Stewart, American R&B singer and pianist
- Bill Stewart (actor), English actor best known as Sandy Longford on A Touch of Frost
- Bill Stewart (musician), American jazz drummer
Public officials
Australia and New Zealand
- William Stewart (governor), lieutenant governor of New South Wales
- William James Stewart (businessman), businessman and mayor of Northam, Western Australia
- William Downie Stewart Sr., member of House of Representatives for City of Dunedin and Dunedin West
- William Downie Stewart Jr, historian; mayor of Dunedin; son of William Downie Stewart Sr.
- William Stewart (New Zealand politician), Reform Party member of House of Representatives
Canada
- William Stewart (Canada West), Canadian businessman and political figure
- William J. Stewart (hydrographic surveyor), Canada's first chief hydrographic surveyor
- William S. Stewart, lawyer, judge and political figure on Prince Edward Island
- William Atcheson Stewart, member of Legislative Assembly of Ontario
- William Douglas Stewart, member of House of Commons
- William Dunbar Stewart, merchant and political figure on Prince Edward Island
- William James Stewart, mayor of Toronto
- William Stewart (Ontario politician), leader of the Communist party in Ontario in the 1970s
United Kingdom and Ireland
- William Stewart (bishop of Aberdeen), Scottish clergyman and diplomat
- William Stewart (makar), Scottish poet
- William Stewart (Lord Mayor of London), lord mayor of London
- William Stewart (Belfast South MP), Northern Ireland member of Parliament of the United Kingdom
- William Stewart (Houghton-le-Spring MP), English member of Parliament
- William Stewart (ILP politician), Secretary of the Scottish Divisional Council of the Independent Labour Party
- William Stewart (Northern Ireland senator), member of the Senate of Northern Ireland
- William Stewart (politician, died 1748), Scottish member of Parliament of Great Britain
- William Stewart (MP for Kirkcudbright), Scottish member of Parliament of Great Britain
- Sir William Stewart (British Army officer, born 1774), Scottish member of Parliament of Great Britain
- Sir William Stewart (soldier), Scots-Irish soldier
- William Stewart, 1st Earl of Blessington, Anglo-Irish peer and member of the House of Lords
- William Stewart, 2nd Viscount Mountjoy, Anglo-Irish peer
- Will Stewart (bishop), bishop of Taunton
- Sir William Houston Stewart, Scottish naval officer
- Sir William Stewart of Baldorran, Scottish landowner
- William Stewart of Caverston, Scottish soldier, captain of Dumbarton Castle
- William Stewart of Grandtully, Scottish landowner and courtier
- Sir William Stewart of Houston, Scottish soldier, privy councilor and diplomat
- William Stewart of Monkton, Scottish landowner
- William Stewart (courtier), Scottish servant to James VI
- William Stewart, Lord Allanbridge, Scottish judge
- William Stewart, 1st Viscount Mountjoy, Anglo-Irish peer and soldier
United States
- William Stewart (Pennsylvania politician), represented 23rd congressional district from 1857 to 1861
- William G. Stewart (Florida politician)
- William M. Stewart, one of Nevada's first two U.S. senators
- William Thomas Stewart, Utah territorial legislature
- William R. Stewart, second African-American elected to Ohio Senate
- William J. Stewart (Pennsylvania politician), Pennsylvania politician
Science
- William Alexander Stewart, American sociolinguist
- William Kilpatrick Stewart, Scottish researcher in aerospace physiology
- William H. Stewart, pediatrician and epidemiologist, 10th surgeon general of the United States
- Sir William Stewart (biologist), Scottish microbiologist
Sports
Football
- William Stewart (footballer, born 1868), Scottish footballer who played for Preston North End and Everton in the 1890s
- Willie Stewart, Scottish footballer who played for Newton Heath and Luton Town
- William Stewart (footballer, born 1875), Scottish international footballer who played for Queen's Park and Newcastle United
- Billy Stewart (Australian footballer), Australian rules footballer for St Kilda
- William Stewart (footballer, born 1897), Scottish footballer who played for Queen's Park and Shawfield
- William Stewart (footballer, born 1910), Scottish footballer who played for Manchester United and Motherwell
- Bill Stewart (American football), American football coach
- Billy Stewart (footballer, born 1965), English goalkeeper who played for several clubs, including Chester and Southport
Other sports
- William Stewart (Australian cricketer), Australian cricketer
- William Stewart (English cricketer), English cricketer
- William Stewart (cyclist), British Olympic cyclist
- William Stewart (athlete), Australian sprinter
- William Stewart (rower), British rower
- Bill Stewart (sports official), American baseball coach and ice hockey referee
- Bill Stewart (high jumper), American high jumper and winner of the high jump at the 1941 USA Outdoor Track and Field Championships
- Bill Stewart (baseball), American baseball outfielder, Kansas City Athletics
- William Payne Stewart, American golfer
- Bill Stewart (ice hockey), Canadian ice hockey defenceman
Other people
- William Stewart (makar), Scottish poet and translator active in the 1530s
- William Stewart (skipper) was a Scottish sea captain from Dundee.
- William Robert Stewart, American ship captain
- William W. Stewart, Scottish-born whaler, sealer and settler
- Sir William Drummond Stewart, Scottish adventurer and British military officer
- William Boyd Stewart, Canadian pastor, writer, and educator
- William Alvah Stewart, American federal judge
- William Stewart (skipper) was a, Scottish sea captain
- Bill Stewart (journalist), American TV correspondent for ABC News
- Bill Stewart (programmer), American software creator