| LARS | David Er Grim 
| Others |
| LARS | Laboratory Assistant And Research Systems
| Others |
| LARS | Laminar Angular Rate Sensor
| Others |
| LARS | Large Animal Research Station
| Others |
| LARS | Last American Rock Stars
| Others |
| LARS | Laurel Advocacy And Referral Services
| Others |
| LARS | Leak Alarm And Response System
| Others |
| LARS | Learning Aim Reference Service
| Others |
| LARS | Learning And Registration System
| Others |
| LARS | Leerlingen App Rijd Samen
| Others |
| LARS | Left Add
| Others |
| LARS | Left Add Right Subtract
| Others |
| LARS | Lesotho Amateur Radio Society
| Others |
| LARS | Lets All Renounce Sugar
| Others |
| LARS | License Applications Renewals and Summonses
| Others |
| LARS | License Applications Renewals Summonses
| Others |
| LARS | Ligament Augmentation Reconstruction System
| Others |
| LARS | Light Amplifying And Reflecting Satellite
| Others |
| LARS | Light Artillery Rocket System
| Others |
| LARS | Lightweight Airborne Recovery System
| Others |
| LARS | Like A Rolling Stone
| Others |
| LARS | Liquid Aluminum Refining System
| Others |
| LARS | Lite Airborne Recovery System
| Others |
| LARS | Loadedpenvibes Ads Revenue Sharing
| Others |
| LARS | Logistics And Resource System
| Others |
| LARS | Long Ashton Research Station
| Others |
| LARS | Los Angeles Radiological Society
| Others |
| LARS | Los Angeles Recording School
| Others |
| LARS | Los Angeles Riot Squad
| Others |
| LARS | Los Angeles Roadsters Show
| Others |
| LARS | Low Aspect Ratio Sailplane
| Others |