| Abbreviation | Definition |
|---|---|
| RSED | Refund Statute Expiration Date |
| RSEE | Remote Script Execution Engine |
| RSEE | responsabilité sociale et environnementale des entreprises |
| RSEE | Russian Society for Ecological Economics |
| RSEF | Real Sociedad Española de Física |
| RSEF | Regional Science and Engineering Fair |
| RSEI | Regionalne Studium Edukacji Informatycznej |
| RSEI | Review of Social and Economic Issues |
| RSEI | Risk Screening of Environmental Indicators |
| RSEL | Registrable Superannuation Entity Licensee |
| RSEL | Remi Sales Engineering Ltd |
| RSEL | Research Service and Educational Leadership |
| RSEP | Reciprocal Student Exchange Program |
| RSEP | Regional Scholar Exchange Program |
| RSEP | Regional Security Education Program |
| RSEP | Regional Stormwater Education Program |
| RSEP | Registry Service Evaluation Process |
| RSEP | Registry Services Evaluation Policy |
| RSEP | Registry Services Evaluation Process |
| RSEP | Renewable Sustainable Expeditionary Power |