| This is a list of the most influencial political parties in the United States. The Republican Party and the Democratic Party are the two major parties. All others are third parties, the most influencial being the Green Party, the Libertarian Party, and the Reform Party. |
| American | capitalist | ||
| American Heritage | capitalist | authoritarian | |
| American Independent | capitalist | ||
| American Nazi | capitalist | enthusiast | fascist |
| American Reform | socialist | ||
| America's | capitalist | enthusiast | |
| Communist | socialist | enthusiast | communist |
| Constitution | capitalist | enthusiast | |
| Democratic | socialist | ||
| Democratic Socialist | socialist | enthusiast | communist |
| Family Values | capitalist | enthusiast | |
| Freedom Socialist | socialist | enthusiast | communist |
| Grassroots | socialist | ||
| Green | socialist | permissivist | syndicalist |
| Independence | capitalist | permissivist | |
| Independent American | capitalist | enthusiast | |
| Labor | socialist | enthusiast | communist |
| Libertarian | permissivist | ||
| Light | socialist | permissivist | |
| Natural Law | socialist | ||
| New | socialist | enthusiast | communist |
| New Union | socialist | communist | |
| Peace and Freedom | socialist | enthusiast | communist |
| Prohibition | capitalist | enthusiast | |
| Reform | capitalist | enthusiast | |
| Republican | capitalist | ||
| Socialist | socialist | communist | |
| Socialist Equality | socialist | enthusiast | communist |
| Socialist Labor | socialist | communist | |
| Socialist Workers | socialist | enthusiast | communist |
| Southern Independence | capitalist | nationalist | |
| U.S. Pacifism | socialist | ||
| Workers' World | socialist | enthusiast | communist |
