| Acronym | Sense | Language | Topics |
|---|---|---|---|
| ARS | Air Rescue Service | In English | |
| ARS | Air Revitalization System | In English | |
| ARS | ALS Release System | In English | |
| ARS | American Rocket Society | In English | → Organizations and associations → Aeronautics, aircraft → United States |
| ARS | Atmosphere/Atmospheric Revitalization (Sub)system | In English | |
| ARS | Attitude Reference System | In English | → Astronautics |
| ArS | Archives des Sciences | In French | → Environmental science → Mathematics and natural sciences |
| ARS | Allocation de Rentrée Scolaire | In French | → Social welfare → Education |
| ARS | Association Roussillon-Solidarité | In French | → Associations |
| ARS | Atelier de Recherche en Sociologie | In French | → Sociology |
| ARS | Autonomna Regionalna Stranka | In Croatian | → Political parties and movements |
| ARS | Agreement relating to Refugee Seamen | In English | → International law → Migrations |
| ARS | Action Request System | In English | → Applied sciences, technology |
| ARS | Agricultural Research Service | In English | → Agricultural sciences |
| ARS | Airline Reservation System | In English | → Software → Transport by air → Tourism |