| Acronym | Definition |
|---|
| IQE➣Internal Quantum Efficiency |
| IQE➣International Quantum Epitaxy |
| IQE➣Institute of Quantum Electronics |
| IQE➣Intelligence Quotient Evaluation |
| IQE➣Initial Qualification Evaluation (US Air Force) |
| IQE➣Incoming Quality Evaluation |
| IQE➣Image Quality Equation (optical engineering) |
| IQE➣Indefinite-Quadratic Estimation |