TMG

TMG may refer to:

Computing

 * TMG (language)
 * Microsoft Forefront Threat Management Gateway
 * The Master Genealogist, software

Science and technology

 * Tensiomyography, for detecting muscle properties
 * Tetramethylguanidine, a superbase
 * Trimethylglycine, an amino acid derivative
 * Trimethylgallium, Ga(CH3)3
 * Touring motor glider
 * Thermal Micrometeoroid Garment, the outer layer of a space suit
 * Thermomechanical generator, the Harwell Stirling engine

Music

 * Ted Mulry Gang, an Australian rock group
 * The Militia Group, a record label
 * Tak Matsumoto Group, a Japanese supergroup
 * Tiny Meat Gang, an American rap comedy duo
 * The Mountain Goats, an American indie rock band

Other media

 * Tele München Gruppe, Munich, Germany
 * Telegraaf Media Groep, Netherlands
 * Times Media Group, South Africa
 * Tiny Meat Gang Studios, Podcast company and Production studio, United States

Other uses

 * Tunney Media Group, fictional owner of NBS on Studio 60 on the Sunset Strip
 * Tennessee Meiji Gakuin High School
 * Têxtil Manuel Gonçalves, a Portuguese company
 * The Monitoring Group, a UK anti-racist charity
 * Former NYSE symbol for TransMontaigne
 * Trident Media Guard, a French anti-software-piracy company
 * Tunisia Monitoring Group, a free-expression group
 * Toyota Motorsport GmbH, Cologne, Germany
 * The Motorsports Group, a US team