Johnny Broderick (January 16, 1896 (some sources say 1894, 1895, or 1897) – January 16, 1966) was a New York City Police Department detective who became known in the 1920s and 1930s as one of the city's toughest officers, patrolling the Broadway Theater District and policing strikes as head of the NYPD's Industrial Squad, sometimes personally beating gangsters and suspects.