Historical left-wing third-party U.S. presidential tickets

Benjamin Franklin Butler (November 5, 1818 – January 11, 1893) was an American major general of the Union Army, politician, lawyer and businessman from Massachusetts. Born in New Hampshire and raised in Lowell, Massachusetts, Butler is best known as a political major general of the Union Army during the American Civil War, and for his leadership role in the impeachment of U.S. President Andrew Johnson. He was a colorful and often controversial figure on the national stage and on the Massachusetts political scene, serving five terms in the U.S. House of Representatives and running several campaigns for governor before his election to that office in 1882.

The Liberty Party was a minor political party in the United States in the 1930s, based on the economic theories of W.H. "Coin" Harvey (1851–1936) (found mainly in his book, The Book). Harvey was initially its 1932 presidential candidate, and they held their convention at his resort, Monte Ne, near Rogers, Arkansas.

The People's Party was a political party in the United States, founded in 1971 by various individuals and state and local political parties, including the Peace and Freedom Party, Commongood People's Party, Country People's Caucus, Human Rights Party, Liberty Union, New American Party, New Party (Arizona), and No Party. The party's goal was to present a united anti-war platform for the coming election.

The New Alliance Party (NAP) was an American political party formed in New York City in 1979. Its immediate precursor was an umbrella organization known as the Labor Community Alliance for Change, whose member groups included the Coalition of Grass Roots Women and the New York City Unemployed and Welfare Council. These groups were all associated with controversial psychologist and political activist Fred Newman, whose radical healthcare collectives, Centers for Change and Marxist International Workers Party, were active in grassroots politics in New York City.

The Union Party was a short-lived political party in the United States, formed in 1935 by a coalition of radio priest Father Charles Coughlin, old-age pension advocate Francis Townsend, and Gerald L. K. Smith, who had taken control of Huey Long's Share Our Wealth (SOW) movement after Long's assassination in 1935. Each of those people hoped to channel their wide followings into support for the Union Party, which proposed a populist alternative to the New Deal reforms of Franklin D. Roosevelt during the Great Depression.

Labor Party was the name or partial name of a number of United States political parties which were organized during the 1870s and 1880s.

The Social Democratic Party of America (SDP) was a short-lived political party in the United States established in 1898.

The Progressive Party was a left-wing political party in the United States that served as a vehicle for the campaign of Henry A. Wallace, a former vice president, to become President of the United States in 1948. The party sought racial desegregation, the establishment of a national health insurance system, an expansion of the welfare system, and the nationalization of the energy industry. The party also sought conciliation with the Soviet Union during the early stages of the Cold War.

The Socialist Workers Party (SWP) is a communist party in the United States. The SWP began as a group which, because it supported Leon Trotsky over Soviet leader Joseph Stalin, was expelled from the Communist Party USA. Since the 1930s, it has published The Militant as a weekly newspaper. It also maintains Pathfinder Press.

The People's Party, usually known as the Populist Party or simply the Populists, was an agrarian populist political party in the United States in the late 19th century. The Populist Party emerged in the early 1890s as an important force in the Southern and Western United States, but declined rapidly after the 1896 United States presidential election in which most of its natural constituency was absorbed by the Bryan wing of the Democratic Party. A rump faction of the party continued to operate into the first decade of the 20th century, but never matched the popularity of the party in the early 1890s.