GCN

GCN may refer to:

Media and society

 * Gay Christian Network, now called Q Christian Fellowship, a nonprofit organization and associated social networking site
 * Gay Community News (Dublin), Ireland's longest running gay newspaper, published since 1988 by the National Lesbian and Gay Federation
 * Gay City News, a free weekly LGBT newspaper stylized as gcn.
 * Gay Community News (Boston), a weekly journal published in Boston from 1973 to 1992
 * Genesis Communications Network, a US radio network
 * Global Cycling Network, a YouTube channel

Science and technology

 * General Coordinates Network, formerly known as Gamma-ray burst coordinates network
 * Graphics Core Next, an AMD graphics microarchitecture series
 * Degenerate codon for the amino acid Alanine (A)

Other uses

 * Grand Canyon National Park Airport (IATA code)
 * GameCube (GCN), a video game console developed by Nintendo