| Acronym | Definition |
|---|
| LARS | Least-Angle Regression (algorithm) |
| LARS | Launch and Recovery System |
| LARS | Low Anterior Resection Syndrome (bowel disfunction) |
| LARS | Large Animal Research Station |
| LARS | Legally Authorized Representative |
| LARS | Left Add, Right Subtract (artillery fire sighting) |
| LARS | Los Angeles Radiological Society |
| LARS | Laminar Angular Rate Sensor |
| LARS | Los Angeles Riot Squad |
| LARS | Lunar Anomaly Research Society |
| LARS | Light Artillery Rocket System |
| LARS | Left Add Right Subtract (contact lenses) |
| LARS | Laser Airborne Remote Sensing |
| LARS | Laser Angular Rate Sensor |
| LARS | Laser Aided Rocket System |
| LARS | Low Altitude Radar System |
| LARS | Lower Atmosphere Research Satellite |
| LARS | Littleton Absentee Reporting System |
| LARS | License and Review System |
| LARS | Long-Term Acoustic Recording System |
| LARS | Locator and Rescue System |
| LARS | Light Weight Airborne Recovery System |