Walter Stewart may refer to:
Politics Walter Stewart, 5th Earl of Menteith (1230s–1290s), also called Walter Bailloch or Walter Balloch Walter Stewart, 3rd High Steward of Scotland (died 1246) Walter Stewart, 6th High Steward of Scotland (1296–1327) Walter Stewart, Lord of Fife (1338–1362) Walter Stewart, Earl of Atholl (died 1437), Scottish nobleman Walter Stewart, 3rd Laird of Baldorran (1480–1575), Scottish landowner Walter Stewart, 1st Lord Blantyre (died 1617), Scottish nobleman Walter Stewart (MP), Scottish courtier and politician in the House of Commons, 1624–25 W. F. Alan Stewart (1885–1956), farmer and political figure in Prince Edward Island Walter Stewart, Solicitor General for Scotland 1720–21
Military Walter Stewart (general) (1756–1796), Pennsylvania officer during the American Revolutionary War Walter L. Stewart Jr. (born 1944), United States Army officer Walter Travis Stewart (1917–2016), American pilot in the United States Army Air Force
Other Walter Stewart (bishop) ( – 1635), Scottish Protestant Archbishop of Glasgow Walter Stewart (footballer) (1875–1926), Australian footballer in Victorian Football League (VFL) Walter W. Stewart (1885–1958), American economist Walter W. Stewart (scientist) (born ), biomedical scientist at the National Institute of Health in Bethesda, Maryland Walter Stewart (journalist) (1931–2004), Canadian writer and educator Walter Stewart (15th-century priest) (), archdeacon of St Andrews and bishop-elect of Dunblane Walter J. Stewart, American public servant
See also Alfred Walter Stewart (1880–1947), British chemist and part-time novelist