List of Scotch-Irish Americans

Andrew Jackson, 7th U.S. President (1829–1837)
James K. Polk, 11th U.S. President (1845–1849)
James Buchanan, 15th U.S. President (1857–1861)
Andrew Johnson, 17th U.S. President (1865–1869)
Ulysses S. Grant, 18th U.S. President (1869–1877)
Chester A. Arthur, 21st U.S. President (1881–1885)
Grover Cleveland, 22nd & 24th U.S. President (1885–1889 & 1893–1897)
Benjamin Harrison, 23rd U.S. President (1889–1893)
William McKinley, 25th U.S. President (1897–1901)
Theodore Roosevelt, 26th U.S. President (1901–1909)
William Howard Taft, 27th U.S. President (1909–1913)
Woodrow Wilson, 28th U.S. President (1913–1921)
Harry S. Truman, 33rd U.S. President (1945–1953)
Lyndon B. Johnson, 36th U.S. President (1963–1969)
Richard Nixon, 37th U.S. President (1969–1974)
Jimmy Carter, 39th U.S. President (1977–1981)
George H. W. Bush, 41st U.S. President (1989–1993)
Bill Clinton, 42nd U.S. President (1993–2001)
George W. Bush, 43rd U.S. President (2001–2009)
Barack Obama, 44th U.S. President (2009–2017)
DeWitt Clinton, 1812 Federalist Presidential Nominee (unofficial)
Hugh Lawson White, 1836 Whig Presidential Nominee (Southern)
John C. Breckinridge, 1860 Southern Democratic Presidential Nominee
George B. McClellan, 1864 Democratic Presidential Nominee
Horace Greeley, 1872 Liberal Republican Presidential Nominee
James G. Blaine, 1884 Republican Presidential Nominee
William Jennings Bryan, 1896, 1900, & 1908 Democratic Presidential Nominee
Adlai Stevenson II, 1952 & 1956 Democratic Presidential Nominee
Al Gore, 2000 Democratic Presidential Nominee
John Kerry, 2004 Democratic Presidential Nominee
John McCain, 2008 Republican Presidential Nominee

This is a list of notable Scotch-Irish Americans, including both original immigrants who obtained American citizenship and their American descendants. The Scotch-Irish trace their ancestry to Lowland Scottish and Northern English people, but through having stayed a few generations in Ulster. This list is ordered by surname within section. To be included in this list, the person must have a Wikipedia article showing they are Scots-Irish American or must have references showing they are Scots-Irish American and are notable.