SINS
| Acronym | Definition |
|---|---|
| SINS | Sorry I'm Not Sorry (Johnny Bliss song) |
| SINS | Ship’s Inertial Navigation System (US DoD) |
| SINS | Small Ionized and Neutral Structures in the Diffuse Interstellar Medium (astronomy) |
| SINS | Strapdown Inertial Navigation System |
| SINS | Surgically Induced Necrotising Scleritis (ocular medicine) |
| SINS | Single Income No Sex |
| SINS | Stellar Inertial Navigation System |