| Abbreviation | Definition |
|---|---|
| QC | Quality Cost |
| QC | Quick Check |
| QCA | Quality Control Analysis |
| QCB | Quality Control Board |
| QCB | Queue Control Block |
| QCD | Quality Control Directorate |
| QCDR | Quality Control Deficiency Report |
| QCOP | Quality Control Operating Procedure |
| QCU | Quality Control Unit |
| QCV | Quick Coupling Valve |
| QCW | Quality Control Work |
| QD | Quick Disconnect |
| QDA | Quick Defect Analysis |
| QDD | Quality Document Development |
| QDR | Qualification Design Review |
| QDS | Quality Data System |
| QE | Quality Engineer |
| QEU | Quality Evaluation Unit |
| QFG | Quick Fix Group |
| QFK | Quest For Knowledge |