| Abbreviation | Definition |
|---|---|
| RPW | Rooney, Plotkin, & Willey, L. L. P. |
| RPX | Republik Express Airlines |
| RQC | Raub Quality Consulting |
| RQC | Reger Quality Consultants |
| RQC | Rogers- Quinn Construction, Inc. |
| RQH | RAINES' Quality Homes |
| RQH | Reist Quarter Horses |
| RQH | Roark Quarter Horses |
| RQH | Roberts Quarter Horses |
| RQI | ResortQuest International |
| RQM | Raum- Quanten- Motoren AG |
| RQN | Ray, Quinney, & Nebeker |
| RQN | Rochester Quick Net |
| RQR | Robinson Qualitative Research |
| RR | Ramage and Ramage |
| RR | Reichard Racing |
| RR | Rolls Royce |
| RR | Rugged Records |
| RRA | Rock River Arms |
| RRAC | Royal Railway Agent Cambodia |