| RBB | Base Sheet Resistance 
| Others |
| RBB | Borba, AM, Brazil
| Others |
| RBB | Raimund Blanke Baumaschinenhandel
| Others |
| RBB | Rainbow Bondage Bear
| Others |
| RBB | Ralph Beattie Bosworth
| Others |
| RBB | Ram Body Builder
| Others |
| RBB | Random Beautiful Backgrounds
| Others |
| RBB | Rapid Barostat Bag
| Others |
| RBB | Rapid Bios Boot
| Others |
| RBB | Rastriya Banijya Bank
| Others |
| RBB | Really Bad Boy
| Others |
| RBB | Receiver Breakout Board
| Others |
| RBB | Red and Black Bandwagon
| Others |
| RBB | Red and Black Bloc
| Others |
| RBB | Red and Black Bloc (Australian football)
| Others |
| RBB | Red Blue Blur
| Others |
| RBB | Reference Budget Balance
| Others |
| RBB | Regimento Brasileiro de Blindados
| Others |
| RBB | Regional Business Brokers, L.L.C.
| Others |
| RBB | Registered Ballot Body
| Others |
| RBB | Research Beyond Borders
| Others |
| RBB | Residential BroadBand
| Others |
| RBB | Results Based Budgeting
| Others |
| RBB | Retail and Business Banking
| Others |
| RBB | Retail Banking Boutique
| Others |
| RBB | Retarded Before Birth
| Others |
| RBB | Reuters Business Briefing
| Others |
| RBB | Reverse Body Bias
| Others |
| RBB | Richland Bean Blossom
| Others |
| RBB | Right Bundle Branch
| Others |
| RBB | Rivera Brothers Boxing
| Others |
| RBB | Rookie Bad Boy
| Others |
| RBB | Rovetta Business Building
| Others |
| RBB | Royal Business Bank
| Others |
| RBB | Rundfunk Berlin Brandenburg
| Others |
| RBB | Rundfunk Berlin-Brandenburg (Berlin-Brandenburg Broadcasting)
| Others |
| RBB | Rundfunk Broadcasting Berlin
| Others |
| RBB | Rundfunks Berlin Brandenburg
| Others |
| RBB | Rune Bolstered Belt
| Others |
| RBB | Rusty Bucket Bay
| Others |