| A&RC | Application and Resource Control 
| Others |
| ARC | Abject Reform Confinement
| Others |
| ARC | Absolute Reticulocyte Count
| Others |
| ARC | Absorb Reflect Counter
| Others |
| ARC | Academic Regulations Committee
| Others |
| ARC | Academic Research Collaborative
| Others |
| ARC | Academic Resource Center
| Others |
| ARC | Academic Resource Connection
| Others |
| ARC | Accelerating Rate Calorimetry
| Others |
| ARC | Access Rescue Canada
| Others |
| ARC | Access Respite Care
| Others |
| ARC | Access Rights Class
| Others |
| ARC | Accessible, Responsive, and Caring
| Others |
| ARC | Accessing Resources For Community
| Others |
| ARC | Accident Repair Centre
| Others |
| ARC | Accident Research Centre
| Others |
| ARC | Account Receivables Conversion
| Others |
| ARC | Accounting Regulatory Committee
| Others |
| ARC | Accounting Requirements Code
| Others |
| ARC | Accounts Receivable Conversion
| Others |
| ARC | Accreditation and Registration Council
| Others |
| ARC | Accreditation Review Commission
| Others |
| ARC | Accreditation Review Committee
| Others |
| ARC | Accreditation Review Council
| Others |
| ARC | Accurate Radius Curvature
| Others |
| ARC | Acid Rocket Clan
| Others |
| ARC | Acknex Resource Center
| Others |
| ARC | Acquire, Retain, and Cultivate
| Others |
| ARC | Action Reinhard Camps
| Others |
| ARC | Action Reinhardt Camps
| Others |
| ARC | Action Replay Codes
| Others |
| ARC | Action, Reflection, and Celebration
| Others |
| ARC | Active Race Control
| Others |
| ARC | Active Ride Control
| Others |
| ARC | Active Roll Control
| Others |
| ARC | Activity and Recreation Center
| Others |
| ARC | Activity Recreation Center
| Others |
| ARC | Actual Rolling Conditions
| Others |
| ARC | Actually Real Crush
| Others |
| ARC | Adaptive Replacement Cache
| Others |
| ARC | Adaptive Ride Control
| Others |
| ARC | Adaptive Robust Control
| Others |
| ARC | Addiction Research Center
| Others |
| ARC | Addicts Rehabilitation Center
| Others |
| ARC | Additional Remote Control
| Others |
| ARC | Address Resolution Client
| Others |
| ARC | Administrative Reforms Commission
| Others |
| ARC | Adoption Resource Center
| Others |
| ARC | Advance Radio Car
| Others |
| ARC | Advance Reader Copy
| Others |
| ARC | Advance Reading Copy
| Others |
| ARC | Advanced Reader Copy
| Others |
| ARC | Advanced Readers Copy
| Others |
| ARC | Advanced Reading Copy
| Others |
| ARC | Advanced Reciprocating Cannula
| Others |
| ARC | Advanced Recon Commando
| Others |
| ARC | Advanced Reconnaissance Clone
| Others |
| ARC | Advanced Reconnaissance Commando
| Others |
| ARC | Advanced Recycling Center
| Others |
| ARC | Advanced Research Center
| Others |
| ARC | Advanced Research for Chariots
| Others |
| ARC | Advanced Resource Connector
| Others |
| ARC | Advanced Risc Computing
| Others |
| ARC | Advanced Risc Console
| Others |
| ARC | Advanced Rope Control
| Others |
| ARC | Advanced Rotor Concepts
| Others |
| ARC | Advanced Router Configuration
| Others |
| ARC | Adventure Racing Canada
| Others |
| ARC | Advice and Reformation Committee
| Others |
| ARC | Advocacy for Respect for Cyclists
| Others |
| ARC | Advocacy Resource Center
| Others |
| ARC | Advocacy Resource CenterHow
| Others |
| ARC | Advocacy, Respect, and Community
| Others |
| ARC | Aerobic Respiration Control
| Others |
| ARC | Affinity, Reality, Communication
| Others |
| ARC | African Rally Championship
| Others |
| ARC | African Risk Capacity
| Others |
| ARC | Aftercare Research Counselling
| Others |
| ARC | Age-Related Cataract
| Others |
| ARC | Ageing Research Centre
| Others |
| ARC | Aggregation of Red Cells
| Others |
| ARC | Agricultural Resource Center
| Others |
| ARC | Agricultural Risk Consultants
| Others |
| ARC | Agriculture Risk Coverage
| Others |
| ARC | AIDS Related Complex
| Others |
| ARC | AIDS-related complex
| Others |
| ARC | AIDS-related condition
| Others |
| ARC | Aimee And Ralph Cabrera
| Others |
| ARC | Air Reserve Component
| Others |
| ARC | Air Rifle Club
| Others |
| ARC | Airborne Radio Communications
| Others |
| ARC | Airline Reporting Corporation
| Others |
| ARC | Airlines Reporting Corporation
| Others |
| ARC | Airport Reference Code
| Others |
| ARC | Airworthiness Review Certificate
| Others |
| ARC | Aktion Reinhard Camps
| Others |
| ARC | Albino Rabbit Club
| Others |
| ARC | Alcohol Racing Components
| Others |
| ARC | Alcohol Recovery Center
| Others |
| ARC | Alerte Risque Collision
| Others |
| ARC | Alexander Railroad
| Others |
| ARC | Alexander Railroad Company
| Others |
| ARC | Alfa Romeo Club
| Others |
| ARC | Alfa Romeo Control
| Others |
| ARC | Alien Residents Card
| Others |
| ARC | All Round Craft
| Others |
| ARC | Alliance of Rutherford County
| Others |
| ARC | Allied Rainbow Communities
| Others |
| ARC | Allison Road Center
| Others |
| ARC | Allison Road Classroom
| Others |
| ARC | Alloy Racing Composites
| Others |
| ARC | Almaden Research Center
| Others |
| ARC | Almost Ready to Cover
| Others |
| ARC | Alternative Radio Coalition
| Others |
| ARC | Aluminum Rigid Conduit
| Others |
| ARC | Amateur Radio Club
| Others |
| ARC | American Racer Cup
| Others |
| ARC | American Racing Club
| Others |
| ARC | American Red Cross
| Others |
| ARC | American Refugee Commitee
| Others |
| ARC | American Refugee Committee
| Others |
| ARC | American Restoration Contractors
| Others |
| ARC | American River College
| Others |
| ARC | American Roundball Corporation
| Others |
| ARC | Ames Research Center
| Others |
| ARC | Amg Red Cut
| Others |
| ARC | Amg Ride Control
| Others |
| ARC | Animal Rescue Center
| Others |
| ARC | Animal Rights Conference
| Others |
| ARC | Anime Realm Cosplay
| Others |
| ARC | Annual Rate of Change
| Others |
| ARC | Annual Report Card
| Others |
| ARC | Annual Report on Carcinogens
| Others |
| ARC | Anteater Recreation Center
| Others |
| ARC | Anti Recidivism Coalition
| Others |
| ARC | Anti Reflective Coating
| Others |
| ARC | Anti-Reflective Coating
| Others |
| ARC | Antigen Responsive Cell
| Others |
| ARC | Antivirus Research Center
| Others |
| ARC | Apiit Recreational Club
| Others |
| ARC | App Runtime
| Others |
| ARC | App Runtime for Chrome
| Others |
| ARC | Appalachian Regional Commission
| Others |
| ARC | Appalachian Regional Committee
| Others |
| ARC | Application Review Committee
| Others |
| ARC | Applied Research Center
| Others |
| ARC | Approved Repair Centre
| Others |
| ARC | Aramaic
| Others |
| ARC | ARC or PKARC Compressed file archive
| Others |
| ARC | Arc Second Raster Chart
| Others |
| ARC | Arcane Roleplayers Consortium
| Others |
| ARC | Archaeological Resource Centre
| Others |
| ARC | Architectural Resources Cambridge
| Others |
| ARC | Architectural Review Committee
| Others |
| ARC | Architecture Registration Corps
| Others |
| ARC | Architecture Resource Center
| Others |
| ARC | Architecture Restoration Conservation
| Others |
| ARC | Architecture Review Committee
| Others |
| ARC | Archival Research Catalog
| Others |
| ARC | Archive File
| Others |
| ARC | Arctic
| Others |
| ARC | Arctic Village Airport, Arctic Village, Alaska USA
| Others |
| ARC | Area Chart
| Others |
| ARC | Area Recreation Center
| Others |
| ARC | Area Research Center
| Others |
| ARC | Area Residence Coordinator
| Others |
| ARC | Argonaut Risc Core
| Others |
| ARC | Aries Custom
| Others |
| ARC | Armada Nacional de Colombia
| Others |
| ARC | Army Recruiting Command
| Others |
| ARC | Army Reuse Center
| Others |
| ARC | Art For Real Change
| Others |
| ARC | Art Renewal Center
| Others |
| ARC | Art Response And Copy
| Others |
| ARC | Art Rhythm And Combination
| Others |
| ARC | Arthritis and Rheumatism Council
| Others |
| ARC | Arthritis Rehabilitation Center
| Others |
| ARC | Arthritis Research Campaign
| Others |
| ARC | Artifact Research Centre
| Others |
| ARC | Artificial intelligence, Robotics & Consciousness
| Others |
| ARC | Artists Residents Chicago
| Others |
| ARC | Aspect Ratio Control
| Others |
| ARC | Aspect Ratio Convert
| Others |
| ARC | Asset Reconstruction Company
| Others |
| ARC | Association for Retarded Children
| Others |
| ARC | Association for Retarded Citizens
| Others |
| ARC | Association of Related Churches
| Others |
| ARC | Association of Retarded Citizens
| Others |
| ARC | Association of Riley Clubs
| Others |
| ARC | Association of Rover Clubs
| Others |
| ARC | Astra Rafael Comsys Pvt. Ltd.
| Others |
| ARC | Atelier Recherche Creation
| Others |
| ARC | Atlanta Regional Commission
| Others |
| ARC | Atlantic Rally for Cruisers
| Others |
| ARC | Atm Research Consortium
| Others |
| ARC | Atomically Reference Counted
| Others |
| ARC | Attached Resources Computing
| Others |
| ARC | Attack, Retrieve, and Capture
| Others |
| ARC | Attentive Reliable Courteous
| Others |
| ARC | Attitude, Respect, Cooperation
| Others |
| ARC | Atypical Reparative Changes
| Others |
| ARC | Auckland Regional Council
| Others |
| ARC | Auction Rate securities Certificate
| Others |
| ARC | Audi Renting Class
| Others |
| ARC | Audio Response Controller
| Others |
| ARC | Audio Return Channel
| Others |
| ARC | Aussie Racing Cars
| Others |
| ARC | Austin Regional Clinic
| Others |
| ARC | Australian Rally Championship
| Others |
| ARC | Australian Rally Commission
| Others |
| ARC | Australian Research Council
| Others |
| ARC | Australian Resuscitation Council
| Others |
| ARC | Authenticated Received Chain
| Others |
| ARC | Authenticated Request Code
| Others |
| ARC | Authorised Release Certificate
| Others |
| ARC | Autism Resource Centre
| Others |
| ARC | Auto Refinishing Centre
| Others |
| ARC | Auto Restoration Club
| Others |
| ARC | Auto Retro Club
| Others |
| ARC | Automated Assistance in Roadworks and Congestion
| Others |
| ARC | Automated Radiotheodolite
| Others |
| ARC | Automated Reference Counting
| Others |
| ARC | Automatic Recall
| Others |
| ARC | Automatic Reception Control
| Others |
| ARC | Automatic Reference Counting
| Others |
| ARC | Automatic Retarder Control
| Others |
| ARC | Automatic Ride Control
| Others |
| ARC | Automobile Recycling Congress
| Others |
| ARC | Automotive Recruitment Consultants
| Others |
| ARC | Automotive Recyclers of Canada
| Others |
| ARC | Automotive Repair Center
| Others |
| ARC | Automotive Research Center
| Others |
| ARC | Automotive Resource Center
| Others |
| ARC | Automotive Restoration Club
| Others |
| ARC | Autonomous Robotic Controller
| Others |
| ARC | Avatar Rendering Cost
| Others |
| ARC | Aviation Research Centre
| Others |
| ARC | Avions Ren Couzinet
| Others |
| ARC | Awareness Responsibility And Communication
| Others |
| ARC | Awareness Responsibility Communication
| Others |
| ARC | Awareness, Responsibility, and Communication
| Others |
| ARC | Cable Repair Ship (Auxiliary, Repair, Cable)
| Others |
| ARC | Royal Canadian Academy of Arts
| Others |