| Acronym | Definition |
|---|
| ERT | Estrogen Replacement Therapy |
| ERT | Enzyme Replacement Therapy |
| ERT | Emergency Response Team (FEMA) |
| ERT | Emergency Response Team |
| ERT | Early Transmit |
| ERT | Extended Release Tablet (drugs) |
| ERT | Elvene Rundt Trondheimsfjorden (Norwegian: Rivers around Trondheim Fjord) |
| ERT | ESPN Regional Television |
| ERT | Environmental Response Team |
| ERT | European Roundtable of Industrialists (European Council; Brussels, Belgium) |
| ERT | Electrical Resistivity Tomography |
| ERT | Employee Relations Team (various organizations) |
| ERT | Earth Received Time (astronomy) |
| ERT | Electrical Resistance Tomography |
| ERT | Energy Resonance Technology |
| ERT | Environmental Review Tribunal (Canada) |
| ERT | Environmental Resources Trust |
| ERT | Evidence Response Team (law enforcement) |
| ERT | Entente Régionale du Tournaisis (French: Regional Agreement of the Tournai; Belgium) |
| ERT | Exclusive Ride Time |
| ERT | eResearch Technology, Inc |
| ERT | Équipe de Recherche Technologique (French: Technological Research Team) |
| ERT | Early Response Team |
| ERT | Emilia Romagna Teatro Fondazione (Modena, Italy) |
| ERT | Evidence Recovery Team (US FEMA) |
| ERT | Elliniki Radiofonia Tileorasi (Greek National Radio-Television Corporation) |
| ERT | Encoder Receiver Transmitter |
| ERT | Eritrean Airlines (ICAO code) |
| ERT | Extended Run Time (various companies) |
| ERT | Emission Reduction Technique |
| ERT | Early Release Time |
| ERT | Emergency Room Technician |
| ERT | Europe Recherche Transport (French: European Transport Research) |
| ERT | Emergency Response Technology (National Technology Transfer Center) |
| ERT | Étude et Réalisation Travaux (French: Study and Design Works) |
| ERT | Extranet Réserves Terre (French: Extranet Land Reserve) |
| ERT | Education Research Theses (database; Australia) |
| ERT | Emergency Roadside Telephone |
| ERT | Estimated Response Time |
| ERT | Earned Release Time (various locations) |
| ERT | Executive Response Team |
| ERT | Estonian Rural Tourism |
| ERT | Electronic Registration and Titling |
| ERT | Electromagnetic Ray Tracing |
| ERT | Execution Reference Time |
| ERT | Education Racing Team (France) |
| ERT | European Registered Toxicologist (Federation of European Toxicologist and European Societies of Toxicology) |
| ERT | Equipment Repair Time |
| ERT | Error Resolution Team |
| ERT | Enhanced Reconnaissance and Targeting |
| ERT | Engineering Review Team |
| ERT | Experts Round Table Network (website) |
| ERT | Educational Requirements Test |
| ERT | Eye Response Technologies, Inc |
| ERT | Eastern Rail Trail |
| ERT | Equivalent Random Theory (communication networks) |
| ERT | Equipment Reception Team |
| ERT | European Rogue Troopers (gaming clan) |
| ERT | Electrically Regenerated Traps |
| ERT | Emergency Reference Time |
| ERT | Email Response Time |
| ERT | Effective Reference Time |
| ERT | Equipment Rack Transporter |
| ERT | Enroute Recovery Team |
| ERT | Engineering Readiness Test |
| ERT | Emotional Rebalance Therapy |
| ERT | Emergency Response Temps (The Freecycle Network) |
| ERT | Electronic Read Transmitter (public utilities) |