| ETR | Early to Rise 
| Others |
| ETR | Early Token Release
| Others |
| ETR | Earn The Right
| Others |
| ETR | East Texas Radiator
| Others |
| ETR | Eastern Tandem Rally
| Others |
| ETR | Eastern Test Range
| Others |
| ETR | Educate Test Reward
| Others |
| ETR | Educational Technology Resources
| Others |
| ETR | Effective Tax Rate
| Others |
| ETR | Elantra Touring
| Others |
| ETR | Electric Tool Repair
| Others |
| ETR | Electronic National Tuberculosis Registry
| Others |
| ETR | Electronic Tandem Resources
| Others |
| ETR | Electronic Temporary Registration
| Others |
| ETR | Electronic Timer and Remote
| Others |
| ETR | Electronic Title and Registration
| Others |
| ETR | Electronic Title Registration
| Others |
| ETR | Electronic Trade Reference
| Others |
| ETR | Electronic Training Request
| Others |
| ETR | Electronically Tuned Radio
| Others |
| ETR | Electronically Tuned Receiver
| Others |
| ETR | Element Test Review
| Others |
| ETR | Eletronic Tuning Radio
| Others |
| ETR | Elettero Treno Rapido
| Others |
| ETR | Elettro Treno Rapido
| Others |
| ETR | Elkton Town Resident
| Others |
| ETR | Embedded Training Requirements
| Others |
| ETR | Emergency Tensioning Retractor
| Others |
| ETR | Emergency Trunk Release
| Others |
| ETR | Emerging Talent Rotational
| Others |
| ETR | Employee Turnover Rate
| Others |
| ETR | Employer Tuition Reimbursement
| Others |
| ETR | Endogenous Tissue Restoration
| Others |
| ETR | Engine Test Request
| Others |
| ETR | Engineering Technical Reviews
| Others |
| ETR | Enhanced Tear Resistance
| Others |
| ETR | Enjoy The Ride
| Others |
| ETR | Enterprise Technology Research
| Others |
| ETR | Environmental Testing and Research
| Others |
| ETR | Equipment Trouble Report
| Others |
| ETR | Essex Terminal
| Others |
| ETR | Est Time of Restoration
| Others |
| ETR | Establish The Run
| Others |
| ETR | Estimated Time of Readiness
| Others |
| ETR | Estimated Time of Recovery
| Others |
| ETR | Estimated Time of Restoration
| Others |
| ETR | Estimated Time of Return
| Others |
| ETR | Estimated Time to Repair
| Others |
| ETR | Estimated Time to Response
| Others |
| ETR | Etravirine
| Others |
| ETR | European Tamil Radio
| Others |
| ETR | European Trainees Residence
| Others |
| ETR | Evaluation Team Report
| Others |
| ETR | Evaporator Temperature Regulator
| Others |
| ETR | Excessive Transverse Ridge
| Others |
| ETR | Exchange On Tax Rulings
| Others |
| ETR | Exchange Trade Report
| Others |
| ETR | Existing To Remain
| Others |
| ETR | Expenditure Transfer Request
| Others |
| ETR | Export Traffic Release
| Others |
| ETR | Express Toll Route
| Others |
| ETR | External Throughput Rate
| Others |
| ETR | External Time Reference
| Others |
| ETR | Extra Testing Rule
| Others |