| Acronym | Definition |
|---|
| SWAC | Standards Western Automatic Computer |
| SWAC | Solid Waste Advisory Committee (Oregon Department of Environmental Quality) |
| SWAC | Sea Water Air Conditioning |
| SWAC | Sonny with a Chance (Disney TV show) |
| SWAC | Soil, Water and Climate (Minnesota) |
| SWAC | Southwest Athletic Conference |
| SWAC | Spatially Weighted Average Concentration |
| SWAC | Special Weapons and Communications (amateur radio) |
| SWAC | Steel Wire Armoured Cable |
| SWAC | Society for the Welfare of Autistic Children (est. 2000) |
| SWAC | South West Academy of Fine and Applied Arts |
| SWAC | Secure Worker Access Consortium |
| SWAC | Sewage and Wastewater Advisory Committee |
| SWAC | Southwest Alliance Church (Miami, FL) |
| SWAC | Summit-Waller Advisory Commission |
| SWAC | Square Wave Alternating Current (welding power supplies to stabilize arc) |