| Acronym | Definition |
|---|
| QCA➣Qualifications and Curriculum Authority (UK government) |
| QCA➣Queensland College of Art (Australia) |
| QCA➣Qt Cryptographic Architecture |
| QCA➣Queens Council on the Arts (York) |
| QCA➣Quantitative Coronary Angiography |
| QCA➣Qualitative Comparative Analysis |
| QCA➣Quebec Chaudiere-Appalaches (Canada) |
| QCA➣Queensland Competition Authority (Australia) |
| QCA➣Quantum-Dot Cellular Automata |
| QCA➣Quoted Companies Alliance (UK) |
| QCA➣Quantum Cellular Automata |
| QCA➣Queen City Angels (Cincinnati, OH) |
| QCA➣Quebec Court of Appeal (Canada) |
| QCA➣Quasi-Crystalline Approximation |
| QCA➣Quiet Communities Act |
| QCA➣Quinte Construction Association (Ontario, Canada) |
| QCA➣Quality Control Analyst |
| QCA➣Quality Control Analysis |
| QCA➣Quality Compliance Assurance |
| QCA➣Quick Connect Acknowledge |
| QCA➣Quasi-Cyclic Abelian (code) |
| QCA➣Quebec Construction Association |
| QCA➣Quadrifilar-Curl Antenna |