| Abbreviation | Definition |
|---|---|
| SB | Speed Box |
| SBA | Spin Bearing Assembly |
| SBC | Single Bound Crew |
| SBCA | Service Bus Certificate Authority |
| SBF | Small Block Ford |
| SBGR | Steel Beam Guide Rail |
| SBHT | Sleeping Bear Heritage Trail |
| SBIR | Small Business Innovation Research |
| SBR | Seat Belt Reminder |
| SBR | Stourbridge Railroad |
| SBRP | Special Bridge Replacement Program - 1970 |
| SBS | Singapore Bus Service |
| SBS | Smart Battery System |
| SBSA | School-Bus Stop Ahead |
| SBT | Segregated Ballast Tanks |
| SBTC | Small Business in Transportation Coalition |
| SBV | Self Balancing Vehicle |
| SBV | Space Based Vehicle |
| SBV | stand by vehicle |
| SC | Scored Cylinders |