| Acronym | Definition |
|---|
| ACQ | Acquisition |
| ACQ | Asthma Control Questionnaire |
| ACQ | Alkaline Copper Quaternary |
| ACQ | Acquiescence (IRB) |
| ACQ | All Call Query |
| ACQ | Acquittal |
| ACQ | Ammoniacal Copper Quaternary (wood preservative) |
| ACQ | Annual Compliance Questionnaire (various companies) |
| ACQ | Amélioration Continue de la Qualité (French: Continuous Improvement of Quality) |
| ACQ | Agoraphobic Cognitions Questionnaire |
| ACQ | Aircraft Quality |
| ACQ | Aged Care Queensland |
| ACQ | Association des Consommateurs du Québec (Canada) |
| ACQ | Association des Clowns du Québec (French: Quebec Clown Association; Canada) |
| ACQ | Academic Call to Quarters (US Air Force Academy) |
| ACQ | Afternoon Call to Quarters (military) |
| ACQ | All Courses and Quadrants (aviation) |
| ACQ | Appraisal Cost of Quality |
| ACQ | Acquisition Qualifier |
| ACQ | agreed contractual quantity |