| Abbreviation | Definition |
|---|---|
| SVD | Spontaneous Vertex Delivery |
| SVG | Scalable Vector Graphics |
| SVGA | Super VGA |
| SVGA | Super Video Graphics Array |
| SVID | Subsystem Vendor Id |
| SVM | See Secure Virtual Machine |
| SVN | Selectively Vulnerable Neurons |
| SVOC | Semi-Volatile Organic Compounds |
| SVP | Saturated Vapour Pressure |
| SVR | Systemic Vascular Resistance |
| SVT | Supra-Ventricular Tachycardia |
| SW | Store Word |
| SW | Set Word |
| SW | Signed Word |
| SW | Single Word |
| SWACH | Sanitation, Water and Community Health |
| SWAPO | South West African People's Organisation |
| SWAT | Skilled With Advanced Tools |
| SWAT | Smart Water Application Technology |
| SWB | Subtract With Borrow |
| SWG | Second Working Group on Money Supply |
| SWGM | Site Working Group Member |
| SWI | SoftWare Interrupt |
| SWIC | Severe Weather Information Centre |
| SWIFT | Society for World-wide Financial Telecommunications |
| SWIG | Sensors for Water Interest Group |
| SWIG | Sensors for the Water Industry Group |
| SWISH | Simple Web Indexing System For Humans |
| SWK | Selective Weed Killer fertilizer |
| SWOG | Southwest Oncology Group |
| SX | Start X |
| SXD | Self-eXamining Device |
| SXM | Self-eXamining Mechanism |
| SXY | Swap X and Y Registers |
| SYN | Synchronize Sequence Number |
| SYS | copies System files to another disc |
| SZ | String Zero |
| SZM | Security Zone Management |
| SZW | Single Zone Warfare |