| 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. |