Irving Howe (né Horenstein; /haʊ/; June 11, 1920 – May 5, 1993) was an American author, literary and social critic, and a key figure in the democratic socialist movement in the U.S. He co-founded and served as longtime editor of Dissent magazine. In 1976, he wrote the National Book Award-winning World of Our Fathers, a history of East European Jews who immigrated to America.

Howe was born Irving Horenstein in The Bronx, New York in 1920. He was the son of Jewish immigrants from Bessarabia, Nettie (née Goldman) and David Horenstein, who ran a small grocery store that went out of business during the Great Depression. Irving's father became a peddler and eventually a presser in a dress factory. His mother was an operator in the dress trade.

Irving attended DeWitt Clinton High School in northwest Bronx, where he was already a left-wing activist. He then matriculated to City College of New York (CCNY) in 1936. He graduated alongside Daniel Bell and Irving Kristol in 1940. By summer of that year, he had changed his surname from Horenstein to Howe for political (as distinct from official) purposes. While in college, he was constantly debating socialism, Stalinism, fascism, and the meaning of Judaism.

During World War II, Howe served four years in the U.S. Army, stationed mostly at Fort Richardson near Anchorage, Alaska. Upon his return to New York, he began writing literary and cultural criticism for Partisan Review and was a frequent essayist for Commentary, Politics, The Nation, The New Republic, and The New York Review of Books. He then worked for several years as one of the resident book reviewers for Time magazine. In 1954, he co-founded the intellectual quarterly Dissent, which he edited until his death. In the 1950s, Howe taught English and Yiddish literature at Brandeis University. His anthology A Treasury of Yiddish Stories (1954), co-edited with Eliezer Greenberg, became a standard text in college courses. Howe's research and translations of Yiddish literature occurred at a time when few were appreciating or spreading knowledge about it in American universities.^{[citation needed]}

Since his high school and CCNY days, Howe was committed to left-wing politics. A professed democratic socialist throughout his life, he was a member of the Young People's Socialist League (YPSL), joining it in the 1930s when it was under the influence of the Trotskyist Socialist Workers Party. He remained with YPSL in 1940 when it became the youth organization of Max Shachtman's Workers Party, where Howe served in a leading capacity and for a while edited its paper, Labor Action. He continued his activist role in the Workers Party when it morphed into the Independent Socialist League in 1949. He left the organization in 1952, deeming it too sectarian.

At the request of his friend Michael Harrington, Howe helped form the Democratic Socialist Organizing Committee (DSOC) in the early 1970s and served on its national board. After DSOC merged into the Democratic Socialists of America (DSA) in 1982, Howe became an Honorary Chair of the DSA.

He was a vociferous opponent of both Soviet totalitarianism and McCarthyism. He called into question standard Marxist doctrine, and came into conflict with the New Left after he criticized their brand of radicalism. In later years, his socialist politics gravitated towards a more pragmatic approach to foreign policy, a position he espoused in the pages of Dissent magazine.

He had a few famous run-ins with people on political matters. In 1969 while at Stanford University, he was verbally attacked by a group of young SDS radicals, who claimed that Howe was no longer committed to the revolution and had become status quo. Howe turned to the leader of the group and said, "You know what you're going to end up as? You're going to end up as a dentist!"