| Acronym | Definition |
|---|
| LBR | Liberia (ISO Country code) |
| LBR | Library (File Name Extension) |
| LBR | Lumber |
| LBR | Librarian |
| LBR | Lilac Breasted Roller (bird) |
| LBR | Lamin B Receptor (cell biology) |
| LBR | Library File |
| LBR | Label Bit Rate |
| LBR | Landelijk Bureau Ter Bestrijding Van Rassendiscriminatie (Dutch: National Bureau against Racial Discrimination) |
| LBR | Low Bit Rate |
| LBR | Legislative Budget Request |
| LBR | Laser Beam Recorder |
| LBR | Late Blight Resistant (agriculture) |
| LBR | Lord Blackthorn's Revenge (game) |
| LBR | London Bridge Resort (Arizona) |
| LBR | Load Backrest (forklift dimension) |
| LBR | Little Boy's Room |
| LBR | Load Balanced Routing |
| LBR | Lowville and Beaver River (railroad) |
| LBR | Limerock Bearing Ratio (technical specifications) |
| LBR | Load Balancing Router |
| LBR | Local Base Rescue |
| LBR | Laser Beam Rider |
| LBR | Loose Body Removal (surgery) |
| LBR | Losers Beyond Repair |
| LBR | Label Bit Rate (Cisco) |
| LBR | Loopback Request |
| LBR | Low Burning Rate |
| LBR | Let's Be Real (various applications) |
| LBR | low birth-rate |
| LBR | Large Business Remote |
| LBR | Long Barreled Revolver |
| LBR | Learn by Rote |
| LBR | Low Band Radome (EA-6B program) |
| LBR | Large Breeder Reactor |
| LBR | Lazy Boy Recordz |
| LBR | Ligand-Binding Repeat |
| LBR | Low Band Receiver |
| LBR | Local Bridge Replacement |
| LBR | Load Bearing Ratio |
| LBR | Loyalty before Royalty |