| PTG | Play The Game (online gaming) |
| PTG | Pietersburg, South Africa (Airport Code) |
| PTG | Polymer Technology Group |
| PTG | Patagonia (South American region) |
| PTG | Pearson Technology Group (Canada) |
| PTG | Piano Technician's Guild (trade association of piano tuners and technicians) |
| PTG | Policy Transition Group (Australia) |
| PTG | Parent Teacher Guild |
| PTG | Premier Technology Group |
| PTG | Peter the Great |
| PTG | Precision Technology Group (Lake Mary, FL) |
| PTG | Parsons Transportation Group, Inc. |
| PTG | Proprietary Trading Group |
| PTG | Path to Glory (game) |
| PTG | Petroleum Technology Group (Norway) |
| PTG | Porcine Thyroglobulin |
| PTG | Plastics Technology Group (Bauer, Clinton Township, MI) |
| PTG | Portal-To-Go |
| PTG | Paper Towel Guy (Dilbert comic) |
| PTG | planed, tongued and grooved (timber) |
| PTG | Professional Travel Grant |
| PTG | Missile-Armed Patrol Boat (US Navy) |
| PTG | Perturbative-Type Green Function |
| PTG | Polymerized Triglyceride |
| PTG | Public Transactional Group (purchasing segment) |
| PTG | Precise Technologies Group, LLC (Washington, DC) |
| PTG | Power Tail Gate (automotive) |
| PTG | Professional Traffic Graphics |
| PTG | Powder Technology Group (University Carlos III of Madrid) |
| PTG | Part Time Guy |
| PTG | Pan-American Technology Group (Panama City, Panama) |
| PTG | Pyongyang Traffic Girl |
| PTG | Pressure Time Governor (fuel injection system) |
| PTG | Pomorskie Towarzystwo Genealogiczne (Polish: Pomeranian Genealogical Society) |
| PTG | Pressure Technology Group (American Society of Mechanical Engineers) |
| PTG | Precise Technology Group, Inc (Largo, MD) |