QACA
| Acronym | Definition |
|---|---|
| QACA | qualified automatic contribution arrangement (US IRS) |
| QACA | Quedgeley Area Conservation Association (Quedgeley, Gloucester, England, UK) |
| QACA | Qatar Authority for Charitable Activities |
| QACA | Quality Assurance Consulting Associates (Colorado) |
| QACA | Quantitative Antiglobulin Consumption Assay (clinical medicine) |