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, the former name of NewsNation, a cable television network based in Chicago, Illinois, United States
WFMT, a radio station (98.7 FM) licensed to Chicago, Illinois, United States, which operates on the frequency formerly belonging to the Tribune-owned FM station that used the call sign WGNB from 1945 until 1953
Shaoyang Wugang Airport, IATA code WGN
White Gaussian noise
Additive white Gaussian noise
The ICAO airline designator for Western Global Airlines
WGN, Journal of the International Meteor Organization
WorldGaming Network