The People's Freedom Union was a left wing American political group which existed from 1919 to 1920. Established as a federation of liberal and radical organizations in New York City, the People's Freedom Union conducted marches in support of political prisoners detained under the Espionage Act during World War I, campaigned for a restoration of American civil rights suspended under the war, and agitated against American intervention in Mexico and Soviet Russia.
The People's Freedom Union was the organizational successor of the People's Council of America, an anti-war organization established in New York City by pacifist and socialist political activists in an effort to end American participation in the European war. The group was headquartered at 138 West 13th Street, premises it shared with the American Civil Liberties Union. The organization declared itself a federation of "several New York groups" which intended to practice "the One Big Union idea applied to the peace-and-freedom movement."
The People's Freedom Union was organized in opposition to the expansion of militarism and imperialism in the post-war world. It declared in its literature that "imperialism is not dead, even though the kaiser and the other emperors have gone" and postulated that the empire-building foreign policy of Great Britain, France, Japan, the United States, and other nations was setting the table for a new round of war. The group therefore sought to organize "liberal and radical forces of the world" in advance of the next conflagration, to "get ready now before the passions of war again sweep them aside."