GN

GN may refer to:

* Guinea (ISO country code: GN), a nation in West Africa
* .gn, the Internet top-level domain for Guinea
* Great Northern Railway (U.S.) (AAR reporting mark: GN), a railway that runs from St. Paul, Minnesota to Seattle, Washington
* Giganewton, a metric unit
* Air Gabon (IATA code: GN), an airline based in Libreville, Gabon
* Graphic novel, a type of comic book, usually with a lengthy and complex storyline similar to those of novels
* Glomerulonephritis, a medical condition
* GN Great Nordic, a Danish company
* Guide number, for an electronic camera flash, measures its ability to illuminate the subject
* GN (car), a British car company operating from 1910 to 1925
* Greater Noida, an Indian township near New Delhi
* An instant messaging abbreviation of "Good Night"
* Guardia Nacional, the national guard or military in some Latin American nations.
* Grid North, a navigational term referring to the direction northwards along the grid lines of a map projection.