| Acronym | Definition |
|---|
| ETN | Exchange Traded Note (investing) |
| ETN | Eaton Corporation (stock symbol) |
| ETN | Équipement Technique du Nord (French: Technical Equipment North) |
| ETN | Electronic Transactions |
| ETN | Electronic Trading Network |
| ETN | Educational Teleconference Network |
| ETN | Electronic Testing and Networking |
| ETN | Electronic Trade Notification |
| ETN | École de Tennis de Niort (French tennis school) |
| ETN | European Travel Network |
| ETN | Electronic Tandem Network |
| ETN | Electricity Transmission Network (various locations) |
| ETN | Eagles Television Network (Philadelphia Eagles; Philadelphia, PA) |
| ETN | Educational Telephone Network |
| ETN | Electronics Technician Communications (US Navy) |
| ETN | Emergency Telephone Notification (various locations) |
| ETN | European Turbine Network (Brussels, Belgium) |
| ETN | Entreprise Terrassement de Normandie (French: Earthmoving Company in Normandy; Normandy, France) |
| ETN | Entertainment Transportation Network (North Stillwater, MN) |
| ETN | Enterprise Telecommunications Network |
| ETN | Equipment Table Nomenclature |
| ETN | Estimated True North (navigation) |
| ETN | Express Travel Network (Romania) |