| Abbreviation | Definition |
|---|---|
| RELF | Roll End Lock Front |
| REMFG | Redwood Empire Manufacturing |
| REXX | REstructured eXtended eXecutor (IBM) |
| RF | Rail Fence |
| RF | RPM Forge |
| RFB | Removed From Box |
| RFF | Raised Face Flange |
| RFID2VIN | Radio Frequency IDentification chips for Automobile Vehicle Identification Numbers |
| RFP | Resolute Forest Products |
| RFV | Radio Frequency Vacuum |
| RG | Receiver General |
| RG | Refractory Grade |
| RG | Ring Gauge |
| RG | Rotating Gobo projector |
| RGDS | Rapid Gravity Dewatering System |
| RGN | Removable GooseNeck |
| RGQ | RotorGene Q |
| RGQP | Retail Gas Quadrant Procedures |
| RH | Remote Headlamp |
| RH | Reverse Holder |