NPBL
| Acronym | Definition |
|---|---|
| NPBL | National Professional Basketball League (1950-51) |
| NPBL | Net Passive Business Loss |
| NPBL | Norfolk and Portsmouth Belt Line (Virginia) |
| NPBL | Normal Peripheral Blood Lymphocytes |
| NPBL | Nuclear Physics at Border Lines (conference) |
| NPBL | Non-Palpable Breast Lesion (mammary gland disease) |