| Acronym | Definition |
|---|
| RIEP➣Rest in Eternal Peace |
| RIEP➣Regional Improvement and Efficiency Partnership (UK) |
| RIEP➣Rural Inclusive Education Program (Azerbaijan) |
| RIEP➣Research Institute for Education Planning (University of the Free State; South Africa) |
| RIEP➣Rhode Island Endeavor Program (marine research) |
| RIEP➣Red Internacional de Estudiantes Paisajistas (Spanish: International Student Network Landscape; Mexico) |
| RIEP➣Rhode Island Environmental Police |