| Acronym | Definition |
|---|
| OAS➣Organization of American States |
| OAS➣Office of Applied Studies (SAMHSA) |
| OAS➣Oracle Application Server |
| OAS➣Online Assessment System (software) |
| OAS➣Office of Academic Services (various schools) |
| OAS➣Online Application System (various organizations) |
| OAS➣Option Adjusted Spread |
| OAS➣on Access Scanner |
| OAS➣Office Automation Systems |
| OAS➣Open Application Server |
| OAS➣Oracle Advanced Security |
| OAS➣Object Addressable Storage |
| OAS➣Oregon Adaptive Sports (Bend, OR) |
| OAS➣Office of the Assistant Secretary |
| OAS➣On-Access Scan (McAfee, Inc.) |
| OAS➣Oracle Advanced Security (software) |
| OAS➣Oral Allergy Syndrome |
| OAS➣Odisha Administrative Service (India) |
| OAS➣Organisation Armée Secrète |
| OAS➣Open Adstream |
| OAS➣2'-5' oligoadenylate synthetase |
| OAS➣Old Age Security Act (Canada) |
| OAS➣Office Automation Software |
| OAS➣Optical Absorption Spectrum |
| OAS➣Office of Addiction Services (Philadelphia, PA) |
| OAS➣Office Automation System |
| OAS➣Office of Administrative Services |
| OAS➣Office of Aircraft Services |
| OAS➣Oxford Advanced Surfaces (UK) |
| OAS➣Organization of Agreement States |
| OAS➣Ontologies in Agent Systems (workshop) |
| OAS➣Oneida Air Systems, Inc. (Syracuse, NY) |
| OAS➣Organization for Asian Studies (Waseda University; NY) |
| OAS➣Offensive Air Support |
| OAS➣Ohio Auditor of State |
| OAS➣Open Airways for Schools |
| OAS➣Open-Architecture-System (computing) |
| OAS➣Oman Aviation Services |
| OAS➣Offensive Avionics System |
| OAS➣Online Auction Site |
| OAS➣On Another Subject |
| OAS➣Organic Aid Scheme (UK) |
| OAS➣Organizational Assessment Survey |
| OAS➣Ophthalmic Anesthesia Society |
| OAS➣Organization of African States |
| OAS➣Official Athletic Site (various locations) |
| OAS➣Outdoor Advertising Sign (various locations) |
| OAS➣Outlook Attachment Sniffer (software) |
| OAS➣Office of Aerospace Studies |
| OAS➣Obstacle Avoidance Sonar |
| OAS➣Online Account Services |
| OAS➣Operational Advisory Services (various organizations) |
| OAS➣Obstacle Avoidance System |
| OAS➣Open Atmospheric Society |
| OAS➣Open Access Scheduling (health clinics) |
| OAS➣Occupied Areas Section (US DoD) |
| OAS➣Optical Access Switch (Quantum) |
| OAS➣Outdoor Adventure Series |
| OAS➣Oceanic Automation System |
| OAS➣Office of Administrative Support (US FEMA) |
| OAS➣Optical Answer Sheet |
| OAS➣Orbital Analysis Subsystem |
| OAS➣Optical Automation Systems (Continuum Photonics) |
| OAS➣Onizuka Air Station (USAF) |
| OAS➣Optical Amplifier Section |
| OAS➣Operations Automation System |
| OAS➣Owner Activity Statement |
| OAS➣Outsourcing Advisory Service |
| OAS➣Originating AT&T Switch |
| OAS➣Orbiter Attachment System |
| OAS➣Operator Administration System (Bellcore) |
| OAS➣Operation After Suspension |
| OAS➣Optically Activated Semiconductor |
| OAS➣Omnidirectional Airspeed Sensor |
| OAS➣Organization as System (planning model) |
| OAS➣Oracle Advanced Scheduler |