Current U.S. Third Parties

This list does not include political organisations that do not run candidates for office but otherwise function similarly to third parties. These are non-electoral political “parties”.

Largest (voter registration over 100,000)

• Libertarian Party– libertarianism, laissez-faire, pro-civil liberties, anti-war
• Green Party– Green politics, progressivism, pro-civil liberties, anti-war

Smaller parties by ideology

This section includes only parties that have actually run candidates under their name in recent years.

Right-wing

This section includes any party that advocates positions associated with American conservatism, including both Old Right and New Right tendencies.

• America’s Party
• Constitution Party
• Independent American Party

State-only parties

• Alaskan Independence Party
• Conservative Party of New York State

Centrist

This section includes any party that is independent, populist, or any other that either rejects right-left politics or doesn’t have a party platform.

• American Solidarity Party
• Citizens Party
• Modern Whig Party
• Reform Party of the United States of America
• United States Pirate Party
• Unity Party of America
• Veterans Party of America

State-only parties

• American Party of South Carolina
• Moderate Party of Rhode Island
• Independence Party of Minnesota
• Independent Party of Delaware
• Independent Party of Oregon
• United Utah Party

Left-wing

This section includes any party that has a left-liberal, progressive, social democratic, democratic socialist or Marxist platform.

• Communist Party USA
• Freedom Socialist Party
• Party for Socialism and Liberation
• Peace and Freedom Party
• Justice Party USA
• Socialist Action
• Socialist Equality Party
• Socialist Alternative
• Socialist Party USA
• Socialist Workers Party
• Workers World Party
• Working Families Party

State-only parties

• Liberal Party of New York
• Liberty Union Party(Vermont)
• Oregon Progressive Party
• United Independent Party(Massachusetts)
• Vermont Progressive Party

Ethnic nationalism

This section includes parties that primarily advocate for granting special privileges or consideration to members of a certain race, ethnic group, religion etc.

• American Freedom Party
• Black Riders Liberation Party
• National Socialist Movement
• New Afrikan Black Panther Party

Also included in this category are various parties found in and confined to Indian reservations, almost all of which are solely devoted to the furthering of the tribes to which the reservations were assigned. An example of a particularly powerful tribal nationalist party is the Seneca Party that operates on the Seneca Nation of New York‘s reservations.

Single-issue/protest-oriented

This section includes parties that primarily advocate single-issue politics (though they may have a more detailed platform) or may seek to attract protest votes rather than to mount serious political campaigns or advocacy.

• Humane Party
• Legal Marijuana Now Party
• Objectivist Party
• Prohibition Party
• United States Marijuana Party

State-only parties

• California National Party
• Hawaii Independence Party
• Latino-Vote Party (Massachusetts)
• Natural Law Party (Michigan)
• New York State Right to Life Party
• Rent Is Too Damn High Party (New York)
• World Citizens Party (Massachusetts)