GCN may refer to:
Nintendo GameCube, a video game console.
Gamma Ray Burst Coordinates Network, a system by which Gamma-Ray Burst information is relayed from the first responding observatory to the rest of the GRB community.
Genesis Communications Network, a web-centric broadcasting company specializing in alternative news and talk radio.
Grand Canyon National Park Airport, according to the International Air Transport Association airport code.
Global Communications Network, instant messenger.
Gay Christian Network, social networking site
*"Gay Community News" (Dublin), Ireland's longest running gay newspaper, published since 1988 by the National Lesbian and Gay Federation.
*"Gay Community News" (Boston), a weekly journal published in Boston from 1973 to 1992.
Government Computer News", a magazine published by the 1105 Media, Inc..
Wikimedia Foundation. 2010.