QEI
| Acronym | Definition |
|---|---|
| QEI | Quadrature Encoder Interface |
| QEI | Queen Elizabeth Islands |
| QEI | Quality Enhancement Initiative |
| QEI | Quod Erat Inveniendum (Latin: Which Was to Be Found Out) |
| QEI | Qualified Elevator Inspector (NAESA) |
| QEI | Quality Educator Interactive (online planning tool) |
| QEI | Quincy Engineering, Inc. (California and Oregon) |