| Acronym | Definition |
|---|
| ARS | Artists Rights Society |
| ARS | Agricultural Research Service (USDA) |
| ARS | Argentina Peso (national currency; successor of Austral 1992) |
| ARS | Alt.Religion.Scientology (newsgroup) |
| ARS | Arsenal |
| ARS | American Rose Society |
| ARS | Arizona Revised Statutes |
| ARS | American Rhododendron Society |
| ARS | Automatic Route Selection |
| ARS | Animal Rescue Site |
| ARS | Agence Régionale de Santé (French: Regional Health Agency) |
| ARS | Allocation de Rentrée Scolaire (French: Back to School Allowance) |
| ARS | Action Request System (Remedy Corp/AT&T) |
| ARS | International Applied Reliability Symposium |
| ARS | Acute Radiation Syndrome |
| ARS | Atlanta Rhythm Section (band) |
| ARS | Air Refueling Squadron |
| ARS | Salvage Ship |
| ARS | Alliance for the Re-Liberation of Somalia (political group) |
| ARS | Active Roll Stabilization (automotive design) |
| ARS | Auction Rate Security |
| ARS | Air Reserve Station |
| ARS | Amateur Radio Service |
| ARS | Autonomously Replicating Sequence (genetics) |
| ARS | Amateur Radio Station |
| ARS | Aon Risk Services (various locations) |
| ARS | Armenian Relief Society (Watertown, Massachusetts) |
| ARS | Automated Response System |
| ARS | American Rhinologic Society |
| ARS | Air Rescue Service (USAF) |
| ARS | Authorized Return Service (UPS) |
| ARS | American Rocket Society |
| ARS | AUTEC (Atlantic Undersea Test and Evaluation Center) Range Services |
| ARS | Association pour la Recherche sur la Sclérose Latérale Amyotrophique |
| ARS | Annual Report to Shareholders |
| ARS | Air-Raid Siren |
| ARS | American Radium Society |
| ARS | Accident Reporting System |
| ARS | Angular Rate Sensor |
| ARS | Air Rescue Squadron (USAF) |
| ARS | American Residential Services, Inc. |
| ARS | Air Revitalization System |
| ARS | Air Recovery System |
| ARS | Accredited Relocation Specialist (real estate) |
| ARS | Agricultural Recruitment System |
| ARS | Air Roll Spin (bodyboarding) |
| ARS | Alternate Route Selection |
| ARS | Aerial Refueling System |
| ARS | Atelier de Recherche Sociologique (French: Sociological Research Workshop) |
| ARS | Attitude Reference System |
| ARS | Anaesthetic Research Society |
| ARS | Active Roles Server (Quest Software, Inc.) |
| ARS | Abstraction Reference and Synthesis |
| ARS | Acoustic Resonance Spectroscopy |
| ARS | Anti-Reflux Surgery |
| ARS | Australian Rhododendron Society |
| ARS | Anti-Rabies Serum (equine origin) |
| ARS | Approximate Reasoning in Scheduling |
| ARS | Arkansas Southern Railroad |
| ARS | Air Reserve Squadron (USAF) |
| ARS | Advanced Recovery System |
| ARS | Air Radio System |
| ARS | Address Resolution Service (Sprint) |
| ARS | Aerial Refueling Store |
| ARS | Amphibious Reconnaissance School (Marine Corps) |
| ARS | Aseguradoras del Régimen Subsidiado (Colombia) |
| ARS | Auxiliary Rescue/Salvage (Ship) |
| ARS | Action Remedy System |
| ARS | Advanced Radiographic System |
| ARS | Alternative Response Systems |
| ARS | Account Registration System |
| ARS | Angle Resolved Scatter (measures angular distribution of light scattered from surface) |
| ARS | Atmospheric Revitalization System |
| ARS | Additive Requirements |
| ARS | Advanced Rocket System |
| ARS | Active Radar Seeker |
| ARS | Application Requirements Specification |
| ARS | Archive and Retrieval Subsystem |
| ARS | Audible Ring Signaler |
| ARS | Automatic Reserve Sharing System (energy production) |
| ARS | Aerial Reconnaissance and Surveillance |
| ARS | Archive Retrieval System |
| ARS | Air Refueling Store |
| ARS | As Required for Subject Assembly |
| ARS | Air Resupply Squadron (USAF) |
| ARS | Aerial RADIAC System |
| ARS | Active Ranging Sensor |
| ARS | ALTAIR Recording System |
| ARS | Active Request System |
| ARS | Active Repeater Satellite |
| ARS | Agency Rating Systems Inc (Waxahachie, TX) |
| ARS | Antenna Receiving System |
| ARS | Archival Recording System |
| ARS | Address Recognition System |
| ARS | Advanced Records System |
| ARS | Account Record Storage Manager |
| ARS | Attack Radar Set |
| ARS | Atomic Resonance Spectroscopy |
| ARS | Access Rate System |
| ARS | Auriol Racing Services (France) |
| ARS | Arm Rest Switch |
| ARS | Airborne Relay Station |
| ARS | Alcohol Rehabilitation Service |
| ARS | Army Reserve Sustainment |
| ARS | Advanced Research Section |
| ARS | Asil Residential Services, Inc. |
| ARS | Automated Refueling System |
| ARS | Automatic Refueling System |
| ARS | Account Retention Specialist |
| ARS | Attenuating Restraint Systems |
| ARS | Aerial Recovery System |
| ARS | Auto Registration Sensor |
| ARS | Automated Resume Subsystem |
| ARS | Automated/Automatic Reporting System |
| ARS | Automated Reconfiguration System |
| ARS | Aerial Reconnaissance & Security |
| ARS | Automated Requisition System |
| ARS | Autonomous Replicating Sequence element |
| ARS | Attorney Referral Service (various organizations) |
| ARS | Area of Research Strength (various schools) |
| ARS | Application and Reporting System (Nordplus Framework Programme) |
| ARS | Asphalt Roofing Shingles |
| ARS | Airline Reservation System |
| ARS | Adsense Revenue Sharing |