WGN is the callsign of two broadcast stations in Chicago, Illinois, both owned by the Tribune company.
WGN is also a US network available on satellite and cable TV services known as Superstation WGN.
In addition, the former WGN-FM 98.7 is now WFMT .
WGN also means White Gaussian noise (see also Additive white Gaussian noise (AWGN))
