GTT

GTT may refer to:

Organizations

• Gunnery Training Team, a British Army training consultancy
• Global Telecom & Technology, a US-based telecommunications company
• Gruppo Torinese Trasporti, the public transportation company of the city of Turin, Italy
• Gaztransport & Technigaz, a French company providing storage systems for natural gas

Science and technology

• Global Title Translation, an operation in the telecommunication Signalling System #7
• Glucose tolerance test, a common test for diagnosing diabetes
• Google translator toolkit, a collaborative machine translation-enabled environment
• Graphics translation table a memory management unit used on graphics cards
• Guttae (medical) (gtt.), drops in medical prescriptions

Other

• Gone to Texas, a phrase used by Americans immigrating to Texas in the 19th century