What is "rtg"

RTG may refer to:

• RTG (trainset), a gas turbine-powered train from France (French « Rame à Turbine à Gaz », "Gas Turbine Trainset")
• Radeon Technology Group, who produces a brand of computer products, and is a division of Advanced Micro Devices
• Radio Télévision Guinéenne, a public broadcaster in Guinea
• Radioisotope thermoelectric generator, a nuclear electrical generator
• Radiotelegraph, in air transport parlance
• Regular tree grammar, a formal grammar
• Renal threshold of glucose, a factor in the medical condition glycosuria
• ReTargetable Graphics, a device driver API for the AmigaOS operating system
• Royal Thai Government
• Rubber Tyred Gantry crane