The Motion Picture Production Code was the set of industry moral censorship guidelines that governed the production of most United States motion pictures released by major studios from 1930 to 1968. It is also popularly known as the Hays Code, after Hollywood's chief censor of the time, Will H. Hays.

The Motion Pictures Producers and Distributors Association (MPPDA), which later became the Motion Picture Association of America (MPAA), adopted the code in 1930, began enforcing it in 1934, and abandoned it in 1968, in favor of the subsequent MPAA film rating system. The Production Code spelled out what was acceptable and what was unacceptable content for motion pictures produced for a public audience in the United States. The office enforcing it was popularly called the Hays Office in reference to Hays, and also later the Breen Office, named after its first administrator, Joseph Breen.