Third-party and independent members of the United States House of Representatives
Third-party and independent members of the United States House of Representatives are generally rare. Although the Republican Party and Democratic Party have dominated U.S. politics in a two-party system since 1856, some independents and members of other political parties have also been elected to Congress or changed their party affiliation to such during their term in office.
This article lists all U.S. representatives since the 45th United States Congress (1877-1879) who were third-party affiliated or independent while they were in office. Since 1877, there have been 119 third-party U.S. Representatives: Six from the Modern era, 41 from the Progressive era, 43 from the Populist era, and 29 from the Greenback era.