NQI
| Acronym | Definition |
|---|---|
| NQI | National Quality Institute (Canada) |
| NQI | Network Quality Intelligence (software) |
| NQI | National Quality Initiative (now National Partnership for Highway Quality) |
| NQI | Nuclear Quadrupole Interaction |
| NQI | Nationally Qualified Instructor (diving training) |
| NQI | Net Quest, Inc. |