TGN

TGN may refer to:

• Thai Global Network, a Thai satellite television channel
• Texas Government Newsletter, a weekly publication edited primarily for college students taking courses in Texas government
• Tyco Global Network, a set of mostly international submarine communications cable systems laid by Tyco Submarine Systems and operated by Tyco Telecommunications, part of Tyco International
• The Generations Network, operator of Ancestry.com, MyFamily.com and other family history and family connection websites
• Trans Golgi network, a part of the golgi apparatus in cells
• 'Task Group N', originally the 'High Throughput Study Group' tasked with developing the wireless LAN standard IEEE 802.11n
• Thyroglobulin, a protein
• Getty Thesaurus of Geographic Names, controlled vocabulary of geographic places maintained by the Getty Vocabulary Program
• TGN1412, a drug that failed in clinical trials on humans

TGN is also the base callsign of Radio Cultural in Guatemala.