| Acronym | Sense | Language | Topics |
|---|---|---|---|
| MARS | Mouvement pour une Alternative Républicaine et Sociale | In French | → Political parties and movements |
| MARS | Manned Astronautical Research Station | In English | → Spaceflight engineering, astronautics |
| MARS | Martin Automatic Reporting System | In English | → 00592 |
| MARS | MCC Automated Reconfiguration System | In English | |
| MARS | Modular Airborne Recorder System | In English | → Aeronautics, aircraft |
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