| Acronym | Definition |
|---|
| SWI | SEQUEL (Structured English Query Language) Web Interface |
| SWI | Standing with Israel |
| SWI | Steering Wheel Interface (various companies) |
| SWI | Standard Work Instruction |
| SWI | Social Work Intern |
| SWI | Summus Wavelet Image |
| SWI | Solidworks Integration |
| SWI | Switch Interface |
| SWI | Software Interrupt |
| SWI | Software Interrupt (ARM CPU instruction) |
| SWI | Suntory Wine International (various locations) |
| SWI | Steuer und Wirtschaft International (German international tax journal; various locations) |
| SWI | Susceptibility Weighted Imaging (diagnostic testing) |
| SWI | Social Welfare Institute |
| SWI | Secure Windows Initiative (Microsoft) |
| SWI | Site Work Instruction (construction) |
| SWI | Social Work Institute (various locations) |
| SWI | Software Item (US DoD) |
| SWI | Self-Reported Work-Related Illness (UK) |
| SWI | Scharff Weisberg, Inc. (New York) |
| SWI | Sterile Water for Injection |
| SWI | Special Weather Intelligence (US DoD) |
| SWI | Software Infrastructure |
| SWI | Steel Window Institute (Cleveland, Ohio) |
| SWI | Static Walkthrough Inspection |
| SWI | Safe Wireless Initiative |
| SWI | Safe Work Instructions (various companies) |
| SWI | Silent Witness Initiative (various locations) |
| SWI | Synthetic Worlds Initiative (research center; Indiana University) |
| SWI | Sozialistischer Widerstand International (German: International Socialist Resistance; Austria) |
| SWI | Systemware Innovation (Toronto, Ontario, Canada) |
| SWI | Statewide Intake |
| SWI | Initial Water Saturation (petroleum engineering) |
| SWI | Stone Wall Initiative |
| SWI | Summer Warmth Index |
| SWI | Swish Movie File |
| SWI | Specific Work Instruction |
| SWI | Skiing While Intoxicated |
| SWI | Stormwater Inflow |
| SWI | Standard Work Item |
| SWI | Samahang Walang Iwanan (Filipino: Friends Forever) |
| SWI | Seaworthiness Impairment |
| SWI | Soil Wetness Indicator |
| SWI | Strategic Weather Initiative (Mathnet TV series) |
| SWI | Simultaneous Wireless Interpretation |
| SWI | Sustainable World Investigation |