National Crime Syndicate
| Founded | Late 1920s–1930s (as a term in media and law enforcement) |
|---|---|
| Founding location | United States |
| Years active | Prohibition era–mid-20th century (as a descriptive concept) |
| Territory | United States |
| Ethnicity | Italian-American, Jewish-American, and other criminal groups |
| Criminal activities | Bootlegging, gambling, labor racketeering, extortion, bribery, fraud |
The National Crime Syndicate is a term used by journalists, law-enforcement officials, and some historians to describe informal cooperation among organized crime figures in the United States during the Prohibition era and the mid-20th century. Rather than a single, centralized organization, the term generally refers to loose, pragmatic alliances among Italian-American and Jewish-American criminal organizations and other criminal groups engaged in bootlegging, gambling, and related illicit activities.
While mid-20th-century media accounts and congressional investigations—most notably those conducted by the Kefauver Committee—often portrayed the Syndicate as a national confederation with leadership and enforcement mechanisms, later scholarship has questioned whether such an organization ever existed in a formal sense. Many historians argue that the concept reflects contemporaneous efforts to explain inter-ethnic criminal cooperation rather than evidence of a durable, structured criminal body.