| 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) |