WGN

WGN may refer to:

  • World's Greatest Newspaper, former slogan of the Chicago Tribune and the namesake for the WGN broadcasting outlets in Chicago, Illinois.
    • WGN (AM), a radio station (720 AM) licensed to Chicago, Illinois, United States
    • WGN-TV, a television station (channel 9.1 virtual/19 digital) licensed to Chicago, Illinois, United States
    • WGN America, a cable television network based in Chicago, Illinois, United States
    • WFMT, a radio station (98.7 FM) licensed to Chicago, Illinois, United States, which used the call sign WGN-FM until 1954
  • White Gaussian noise (see also additive white Gaussian noise)