Andrew John Volstead was an American member of the United States House of Representatives from Minnesota, 1903–1923, and a member of the Republican Party. His name is closely associated with the National Prohibition Act of 1919, usually called the Volstead Act. The act was the enabling legislation for the enforcement of Prohibition in the United States beginning in 1920.

The National Prohibition Act, known informally as the Volstead Act, was an act of the 66th United States Congress designed to execute the 18th Amendment which established the prohibition of alcoholic drinks. The Anti-Saloon League's Wayne Wheeler conceived and drafted the bill, which was named after Andrew Volstead, chairman of the House Judiciary Committee, who managed the legislation.