| ARAS | A Radio Automation System 
| Others |
| ARAS | Acceptance Respect Affection Support
| Others |
| ARAS | Adult Reading Assistance Scheme
| Others |
| ARAS | Adult Reading Assistance Scheme (New Zealand)
| Others |
| ARAS | Advanced Riding Assistance System
| Others |
| ARAS | Affordable Reliable Appliance Services
| Others |
| ARAS | Aged Rights Advocacy Service
| Others |
| ARAS | Aged Rights Advocacy Service (Australia)
| Others |
| ARAS | Air Ride Adaptive Suspension
| Others |
| ARAS | Alberta Reappraising AIDS Society
| Others |
| ARAS | Anti Reflection Anti Static
| Others |
| ARAS | Appletalk Remote Access Service
| Others |
| ARAS | Archive for Research in Archetypal Symbolism
| Others |
| ArAS | Armenian Astronomical Society
| Others |
| ARAS | Ascending Reticular Activating System
| Others |
| ARAS | Astronomical Ring for Access to Spectroscopy
| Others |
| ARAS | Atherosclerotic Renal Artery Stenosis
| Others |
| ARAS | Atomic Resonance Absorption Spectrophotometry
| Others |
| ARAS | Automatic Ranger Alert System
| Others |
| ARAS | Radio Automation System
| Others |