TGN

TGN may refer to:


 * Tarragona, abbreviation of the city of Tarragona, in Catalonia
 * Thai Global Network, a Thai satellite television channel
 * Texas Government Newsletter, for college students
 * Tyco Global Network, fiber optic network by Tyco International
 * Trans Golgi network in biology
 * IEEE 802.11n Task Group N
 * Thyroglobulin, a protein
 * Getty Thesaurus of Geographic Names
 * TGN (AM) radio station, Guatemala
 * Latrobe Regional Airport, IATA airport code "TGN"