| Acronym | Definition |
|---|
| SitS | Science in the Summer (various locations) |
| SitS | Standing in the Shadows (book) |
| SitS | System Integrated Test Station |
| SitS | Sing in the Shower |
| SitS | Spirit in the Sky (Norman Greenbaum song) |
| SitS | Supraspinatus, Infraspinatus, Teres Minor, Subscapularis (rotator cuff muscles) |
| SitS | Science Instrument Test System |
| SitS | System Integration Test Station |
| SitS | Software and Information Technology Services |
| SitS | Science Instrument Test Set |
| SitS | System Integration Test Stand |
| SitS | Scitor International Telecommunications Services Inc (SITA) |
| SitS | Samoa Information Technology Society (professional group) |
| SitS | Secure Imagery Transmission System |
| SitS | System Imaging Toolkit for Solaris |