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 defunct 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 Gavin Christopher Newsom (born 1967), 40th Governor of California
See also General control non-derepressible, proteins such as Gcn2 and Gcn4