| DER | Data Element Request 
| Others |
| DER | Data Error Reporting
| Others |
| DER | Death Egg Robot
| Others |
| DER | Debt-to-Equity Ratio
| Others |
| DER | Defense Efficiency Ratio
| Others |
| DER | Defensive Efficiency Rating
| Others |
| DER | Definite Encoding Rules
| Others |
| DER | Department of Environment and Regulation
| Others |
| DER | Department of Environment Regulation
| Others |
| DER | Department of Environmental Resources
| Others |
| DER | Department of Exploitable Resources
| Others |
| DER | Departure End Of Runway
| Others |
| DER | Departure End of the Runway
| Others |
| DER | DERailleur gears
| Others |
| DER | Derham, Papua New Guinea
| Others |
| DER | Designated Employer Representative
| Others |
| DER | Designated Engineering Representative
| Others |
| DER | Designated Engineering Representatives
| Others |
| DER | Destroyer Escort, Radar Picket
| Others |
| DER | Development Executives Roundtable
| Others |
| DER | Device Error Recovery
| Others |
| DER | Diesel Emissions Reduction
| Others |
| DER | Digital Education Revolution
| Others |
| DER | Disaster and Emergency Response
| Others |
| DER | Discrete Emission Reduction
| Others |
| DER | Dissociative Exomind Rejection
| Others |
| DER | Distinguished Encoding Rules
| Others |
| DER | Distributed Energy Resource
| Others |
| DER | Distributed Energy Resources
| Others |
| DER | Division of Extramural Research
| Others |
| DER | Documentary Educational Resources
| Others |
| DER | Dramatic Entertainment Robot
| Others |
| DER | Drawing Error Report
| Others |
| DER | Drug Experience Report
| Others |
| DER | Dry Extract Ratio
| Others |
| DER | Dual Ethernet Router
| Others |
| DER | Dull Emitter Receiving
| Others |
| DER | Dunn-Erwin Railway Corporation
| Others |