| Acronym | Definition |
|---|
| OLB | Outside Linebacker |
| OLB | Overpass Light Brigade (various locations) |
| OLB | Online Banking |
| OLB | Outlook Backup |
| OLB | on Line Backup |
| OLB | on Line Banking |
| OLB | Off Line Browser |
| OLB | Object Library |
| OLB | Online Broker |
| OLB | Open Lung Biopsy |
| OLB | Outer Lead Bond (semiconductors) |
| OLB | Object Language Bindings (database management) |
| OLB | Online Billing (various organizations) |
| OLB | Observable Language Behaviour (education) |
| OLB | Online Bidding |
| OLB | Other Leading Brand |
| OLB | Outdoor Living Brands |
| OLB | Old Lazy Bastard |
| OLB | Order of the Lost Boys |
| OLB | Offshore Life Boat |
| OLB | Operation Location Bravo |