1916 Missouri gubernatorial election

The 1916 Missouri gubernatorial election was held on November 7, 1916, and resulted in a narrow victory for the Democratic nominee, St. Louis businessman Frederick D. Gardner, over the Republican candidate, Chief Justice of the Supreme Court of Missouri Henry Lamm, and candidates representing the Socialist, Progressive, Prohibition, and Socialist Labor parties. To date, it is the closest gubernatorial election in Missouri history. Gardner defeated Secretary of State Cornelius Roach, Attorney General John Tull Barker, and Lieutenant Governor William Rock Painter for his party's nomination.