| PRB | Packet Receive Buffer 
| Others |
| PRB | Painters' Registration Board
| Others |
| PRB | Panel Review Board
| Others |
| PRB | Parachute Refurbishment Building
| Others |
| PRB | Parks Rec Business
| Others |
| PRB | Partido Republicano Brasileiro
| Others |
| PRB | Paso Robles (TACAN Station)
| Others |
| PRB | Paso Robles Municipal Airport, San Luis Obispo/ Paso Robles, California USA
| Others |
| PRB | Paul Raymond B
| Others |
| PRB | Pay Research Bureau
| Others |
| PRB | Pay Review Body
| Others |
| PRB | Pearl River Bridge
| Others |
| PRB | Peled Road Blocker
| Others |
| PRB | Pennsylvania Regional Ballet
| Others |
| PRB | Pension Review Board
| Others |
| PRB | Percutaneous Renal Biopsy
| Others |
| PRB | Performance Review Board
| Others |
| PRB | Performance Review Body
| Others |
| PRB | Perinatology Research Branch
| Others |
| PRB | Periodic Review Board
| Others |
| PRB | Permeable Reactive Barrier
| Others |
| PRB | Permeable Reactive Barriers
| Others |
| PRB | Personnel Replacement Battalion
| Others |
| PRB | Peter Raymond Bladwell
| Others |
| PRB | Pharmaceutical Resources Branch
| Others |
| PRB | Philosophy Research Base
| Others |
| PRB | phosphorylation of retinoblastoma
| Others |
| PRB | Php Rrd Browser
| Others |
| PRB | Physical Resource Block
| Others |
| PRB | Physical Review B
| Others |
| PRB | Physics Research Building
| Others |
| PRB | Pine River Backus
| Others |
| PRB | Please Reply By
| Others |
| PRB | Polar Research Board
| Others |
| PRB | Police Road Block
| Others |
| PRB | Policy Research Bureau
| Others |
| PRB | Population Reference
| Others |
| PRB | Population Reference Bureau
| Others |
| PRB | Post Retirement Benefit
| Others |
| PRB | Powder River Basin
| Others |
| PRB | Power relay board
| Others |
| PRB | Power Running Board
| Others |
| PRB | Precocious Rowdy Boys
| Others |
| PRB | Preliminary Review Board
| Others |
| PRB | Preserve The Rare Breeds
| Others |
| PRB | Press Brake
| Others |
| PRB | Press Release Blaster
| Others |
| PRB | Prevention Research Branch
| Others |
| PRB | Primary Revenue Balance
| Others |
| PRB | Principles for Responsible Banking
| Others |
| PRB | Private Radio Bureau
| Others |
| PRB | Problem Review Board
| Others |
| PRB | Procurement Review Board
| Others |
| PRB | Product Release Branch
| Others |
| PRB | Program Request Block
| Others |
| PRB | Project Review Board
| Others |
| PRB | Projector Recorder Belts
| Others |
| PRB | Pseudo-Random Binary
| Others |
| PRB | Publications Review Board
| Others |
| PRB | Puerto Rican Baby
| Others |
| PRB | Puerto Rico Bankruptcy Court
| Others |
| PRB | Punk Rock Blues
| Others |
| PRB | Punk Rock Bowling
| Others |
| PRB | The Private Radio Bureau
| Others |