| Acronym | Definition |
|---|
| PLB | Personal Locator Beacon (see SARBE) |
| PLB | Phospholamban (cardiac calcium regulation) |
| PLB | Productivity Linked Bonus |
| PLB | Processor Local Bus (high-performance, on-chip bus) |
| PLB | Pursed Lip Breathing |
| PLB | Processor Local Bus |
| PLB | Pipelined Burst |
| PLB | Fox Pro Library |
| PLB | Payload Bay |
| PLB | Programmable Logic Block (basic blocks of a field programmable gate array) |
| PLB | Polabian (linguistics) |
| PLB | Passenger Loading Bridge (airport) |
| PLB | Professional Licensing Board (various locations) |
| PLB | Plattsburgh, NY, USA (Airport Code) |
| PLB | Provider Level Adjustment (insurance) |
| PLB | Power Line Broadband (FCC) |
| PLB | Posterior Lateral Branch (cardiology) |
| PLB | Purchase and Leaseback (transaction) |
| PLB | Premier League Board (Ghana) |
| PLB | Parti Louvri Baryé (French: Open the Gate Party, Haiti) |
| PLB | Privacy and Legislation Branch (Office of the Government Chief Information Officer; Canada) |
| PLB | Planning and Lands Bureau (Hong Kong) |
| PLB | Private Label Branch |
| PLB | Pipe Lay Barge |
| PLB | Pulse Length Limiting & Blanking |
| PLB | Planning and Landing Bureau (Hong Kong) |