GN may refer to:
Businesses and organizations Air Gabon (IATA code: GN), an airline based in Libreville, Gabon Gendarmerie Nationale (disambiguation), any of several national police forces Gente Nueva, a Mexican criminal organization GN Store Nord, a Danish manufacturer GN (car), a British car company operating from 1910 to 1925 Great Northern Railway (U.S.), a railway that ran from St. Paul to Seattle Guardia Nacional (disambiguation), a national guard or military in some Latin American nations Gioventù Nazionale (GN), youth wing of the Italian Brothers of Italy (FdI) party
Music G. N. (album), a 1981 album by Gianna Nannini GN (album), a 2017 album by Ratboys
Places Guinea (ISO country code: GN), a nation in West Africa .gn, the Internet top-level domain for Guinea
Science and technology G-N (drug), a psychedelic-related chemical compound Gauss-Newton, an algorithm in statistics GeneNetwork, database and analysis software for systems genetics Giganewton, a unit of force in physics Glomerulonephritis, a medical condition gn, a meta-build system for Ninja Graduate nurse Grain (unit), a unit of mass Ground Network, former name of Near Earth Network Guide number, for an electronic camera flash Suzuki GN series, a range of motorcycles
Other uses Gastronorm sizes, a set of food storage containers based on EN 631 standard Gn (digraph), a two-character combination in various languages Guarani language (ISO 639-1 code "gn") gn, abbreviation for guinea, a former British coin and currency unit Graphic novel