PNEC
| Acronym | Definition |
|---|---|
| PNEC | Predicted No Effect Concentration |
| PNEC | Pulmonary Neuroendocrine Cells |
| PNEC | Pakistan Navy Engineering College (Karachi, Pakistan) |
| PNEC | Pacific Northwest Economic Conference (International Relations Students Association) |
| PNEC | Primary Navy Enlisted Classification |