| Acronym | Definition |
|---|
| RBO | Regional Bus Operations (Metropolitan Transportation Authority; New York) |
| RBO | Replication Business Object |
| RBO | Real Business Object |
| RBO | Reverse Byte Ordering |
| RBO | Ring Buffer Object |
| RBO | Reliability Based Optimization (engineering) |
| RBO | Rice Bran Oil |
| RBO | Ragnarok Battle Offline (gaming) |
| RBO | Rule Based Optimizer (Oracle) |
| RBO | Rock et Belles Oreilles (French) |
| RBO | Regional Branch Office |
| RBO | River Basin Organization (various locations) |
| RBO | Resort Business Opportunities (Bend, OR) |
| RBO | Regulator Burn Out |
| RBO | Royal Bubble Orchestra (band; France) |
| RBO | Regular Burning Oil (fuel) |
| RBO | Roseburg, Oregon (border patrol station) |
| RBO | Refinance Balance Only |
| RBO | Residential Building Official (Ohio Board of Building Standards) |
| RBO | Revista Brasileira de Ornitologia (Spanish: Brazilian Journal of Ornithology; Brazil) |
| RBO | Rescue Boat Operator |
| RBO | Radio Beacon Omnidirectional |
| RBO | Regulatory Bulletin Options |
| RBO | Repair Before Operate |
| RBO | Radius-Break-Over (airport luggage conveyors) |
| RBO | Registered Building Official (British Columbia, Canada) |
| RBO | Register Balancing Optimization |
| RBO | Redback Business Object (Informix) |
| RBO | Repro Bureautique Organisation (French office equipment retailer) |