| Abbreviation | Definition |
|---|---|
| SCO | Senior Commercial Officer |
| SCOPE | Supply Chain Optimal Packaging Economiser |
| SCOT | Supply Chain Optimization Technology |
| SCS | Submarine Cable System |
| SDF | Self Declaration Form |
| SDN | Specially Designated National |
| SDNBHD | Sendirian Berhad |
| SDR | Single Duty Rate |
| SDR | Special Drawing Rights |
| SDS | Stang Decision Systems |
| SDSL | Symmetric Digital Subscriber Line |
| SDT | Specially Designated Terrorist |
| SEA | Single European Act |
| SEANAP | South East Asia, North Asia and Pacific |
| SEAQ | South East Asian Quotation |
| SEC | Special Equipment Compensation |
| SECCI | Standard European Consumer Credit Information |
| SED | Shipper's Export Declaration |
| SED | Special Excise Duty |
| SEDA | Savannah Economic Development Authority |