| Abbreviation | Definition |
|---|---|
| RRJ | Raths, Raths, & Johnson, Inc. Structural Architectural Engineers |
| RRK | Red River Kartway |
| RRL | Range Resources Ltd |
| RRL | Regis Resources Ltd |
| RRL | Relentless Resources Ltd |
| RRLH | Ray's Real Log Homes |
| RRM | Road Race Management, Inc. |
| RRM | Road Race Management, Incorporated |
| RRM | Road Race Motorsports |
| RRNMI | Rolls Royce Naval Marine Inc. |
| RRO | Raul Rivera-Ortiz, Architects |
| RRO | Rocky Road Outfitters |
| RRO | Royal Resources Online |
| RROA | Rate of Return On Assets |
| RROC | Rate of Return On Capital |
| RRP | Ribbon Rail Productions |
| RRP | Robinson Racing Products |
| RRP | Robinson Ransbottom Pottery |
| RRP | Roseville Ransbottom Pottery |
| RRQ | Round Robin Quilts |