| Acronym | Definition |
|---|
| QSCA➣scattering efficiency |
| QSCA➣Queensland Saloon Car Association, Inc (Hervery Bay, Queensland, Australia) |
| QSCA➣Quaker Service Council Australia |
| QSCA➣Queensland Sea Cucumber Association |
| QSCA➣Quantum Success Coaching Academy |
| QSCA➣Quebec Street Car Association (racing organization; Canada) |
| QSCA➣Queensland Sporting Clays Association |
| QSCA➣Quick Stab Collection Agency |
| QSCA➣Quantum Soliton Cellular Automata |
| QSCA➣Quality, Standardization, Certification and Accreditation |