| Abbreviation | Definition |
|---|---|
| RSEP | Rising Sun Entertainment and Productions |
| RSEP | Rivers State Electrification Project |
| RSER | Reentry Support Equipment Replacement |
| RSER | Renewable and Sustainable Energy Reviews |
| RSES | Rear Seat Entertainment System |
| RSES | Red Sandstone Elementary School |
| RSES | Refrigeration Service Engineers Society |
| RSES | Register of Security Engineers and Specialists |
| RSES | Rising Sun Elementary School |
| RSES | River Springs Elementary School |
| RSES | Roberts Street Elementary School |
| RSES | Rock Springs Elementary School |
| RSES | Rough Set Exploration System |
| RSET | Regional Sediment Evaluation Team |
| RSET | Rod Surface Elevation Table |
| RSF | Radial Stress Fiber |
| RSF | Radio Sans Fin |
| RSF | Radioaficionados Sin Fronteras |
| RSF | Range Sampling Frequency |
| RSF | Range Steel Fabricators |