| Abbreviation | Definition |
|---|---|
| QO | Quality Oncology, Inc. |
| QO | Quality Oncology, Incorporated |
| QO | Quest Organization |
| QOEG | Quality One Education Group, Inc. |
| QOF | Quality Oxfordshire Gyms |
| QOG | Quality Oxfordshire Gyms |
| QOIL | Quest Oil Corporation |
| QOK | Quality Oxfordshire Keepfit |
| QOLL | Quality of Life Laboratories |
| QOS | Qosina |
| QOSI | Queensland Ornithological Society Inc |
| QOT | Quality on Tap |
| QP | Quay Press |
| QP | Quilting Pacific |
| QP | Quotes Plus |
| QPB | Quality Paperback Bookclub |
| QPBC | Quality Paperback Book Club |
| QPC | Quantum Prime Communications |
| QPD | Quality Paperbacks Direct |
| QPD | Quality Products Distributor |