| Abbreviation | Definition |
|---|---|
| QC | Qualifying Certificate |
| QC | Queen's Counsel |
| QC | Quite Close |
| QCD | Quick Claim Deed |
| QCJ | Quezon City Jail |
| QCP | Queen City Police |
| QCR | Query Case Records |
| QCR | Question Concerning Representation |
| QDAC | Queensland Drug and Alcohol Court |
| QDC | Queensland District Court |
| QDDP | Quarantine Detector Dog Programme |
| QDE | Qualified Designated Entity |
| QDE | Questioned Document Examination |
| QDE | Questioned Document Examiner |
| QDI | Questioned Document Investigation |
| QDP | Qualified Domestic Partner |
| QDRO | Qualified Domestic Relations Order |
| QDX | Questioned Document Examination |
| QED | Quod Erat Demonstrandum |
| QEW | Qualified Expert Witness |