| Acronym | Definition |
|---|
| PBL➣Problem-Based Learning |
| PBL➣Phi Beta Lambda |
| PBL➣Performance Based Logistics |
| PBL➣Peripheral Blood Lymphocyte (blood cells) |
| PBL➣Planbureau voor de Leefomgeving (Dutch: Planning for the Environment; Netherlands Environmental Assessment Agency) |
| PBL➣Points, Badges, and Leaderboards (gaming) |
| PBL➣Planetary Boundary Layer |
| PBL➣Protected Bike Lane (various locations) |
| PBL➣Philippine Basketball League |
| PBL➣Put Block |
| PBL➣Primary Boot Loader |
| PBL➣Power Basic Library |
| PBL➣Performance-Based Leadership |
| PBL➣Publishing and Broadcasting Limited (Australia) |
| PBL➣Peripheral Blood Leukocyte |
| PBL➣Panacea Biotec Ltd. (India) |
| PBL➣Primary Boot Loader (computing) |
| PBL➣Product Baseline |
| PBL➣Problem/Project Based Learning |
| PBL➣Project-Based Lesson (education) |
| PBL➣Pacific Brands Ltd. (Australia) |
| PBL➣Policy Based Loan |
| PBL➣Philadelphia Belt Line Railroad |
| PBL➣Polish Peasant Bloc |
| PBL➣Patrol Boat Light (US Navy) |
| PBL➣Policy By-Laws (Australian government) |
| PBL➣Protection Ballistic Limit |
| PBL➣Power Builder Library |
| PBL➣Points Behind Leader (hockey) |
| PBL➣Per Beneficiary Limit |
| PBL➣Poly Buffer LOCOS (Local Oxidation of Silicon) |
| PBL➣Policy Blocking List (SPAM filtering) |
| PBL➣Project By-Law (Australia) |
| PBL➣Punishable By Life imprisonment (Florida) |
| PBL➣Plastic Barrier Layer (soft goods packaging) |
| PBL➣Peanut Butter Legs |
| PBL➣Phrase-Based Language (speech synthesis development tool) |
| PBL➣Pay by the Load (transportation) |
| PBL➣Persons, Behle and Latimer (law firm) |