| OASIS | Observation Aided Safety Improvement System 
| Others |
| OASIS | Observation at Site Improves Safety
| Others |
| OASIS | Ocean Acquisition System for Interdisciplinary Science
| Others |
| OASIS | Ocean Atmosphere Seafloor Integration Study
| Others |
| OASIS | Oceanic and Atmospheric Scientific Information System
| Others |
| OASIS | Oceanographic and Atmospheric Support and Information System
| Others |
| OASIS | Offering Adult Support In Scouting
| Others |
| OASIS | Offering All Sisters Inspired Studies
| Others |
| OASIS | Offering Appalachian States Innovative Sustainability
| Others |
| OASIS | Office Of Academic Support Information Services
| Others |
| OASIS | Office Of Arts And Sciences Information Services
| Others |
| OASIS | Office of Arts, Sciences, and Information Services
| Others |
| OASIS | Okagor Airport Security International Services
| Others |
| OASIS | Old Age Social And Income Security
| Others |
| OASIS | Older Active Singles In Spirit
| Others |
| OASIS | Older Active Spiritually Inspired Singles
| Others |
| OASIS | Older Adult Service Information System
| Others |
| OASIS | Older Adult Student Information Services
| Others |
| OASIS | Older Adults Seeking Information and Skills
| Others |
| OASIS | Older Adults Seeking Information Skills
| Others |
| OASIS | Older Adults Services and Intervention System
| Others |
| OASIS | Oldham Athletic Supporters In The South
| Others |
| OASIS | Olsen Assisting Students In Success
| Others |
| OASIS | On-line Analytical and Statistical Information System
| Others |
| OASIS | On-line Asperger's Syndrome Information and Support
| Others |
| OASIS | Oncology and Sexuality Intimacy and Survivorship
| Others |
| OASIS | One Acquisition Solution for Integrated Services
| Others |
| OASIS | Ongoing Advancement of Standards for Information Search
| Others |
| OASIS | Online Academic Student Information System
| Others |
| OASIS | Online Access Student Information System
| Others |
| OASIS | Online Access to Student Information Services
| Others |
| OASIS | Online Access to Student Information System
| Others |
| OASIS | Online Access to Student Information Systems
| Others |
| OASIS | Online Administrative Student Information System
| Others |
| OASIS | Online Advising Student Information System
| Others |
| OASIS | Online Aerospace Supplier Information System
| Others |
| OASIS | Online Agency Sales Integrated System
| Others |
| OASIS | Online Aix Service Information Station
| Others |
| OASIS | Online Applicant Status and Information System
| Others |
| OASIS | Online Appointment Service and Information System
| Others |
| OASIS | Online Archival Search Information System
| Others |
| OASIS | Online Auburn Student Information System
| Others |
| OASIS | Online Auction Service and Internet Specialists
| Others |
| OASIS | Online Automated Scheduling Information Software
| Others |
| OASIS | Online Automated Supplier Information Systems
| Others |
| OASIS | Online Automotive Service Information System
| Others |
| OASIS | Open Academy Schooling And Instruction System
| Others |
| OASIS | Open Access to State Information and Services
| Others |
| OASIS | Open Accessible Space Information System
| Others |
| OASIS | Open Analogue Signal Information System
| Others |
| OASIS | Open and Active Specification of Information Systems
| Others |
| OASIS | Open Annotation Semantic Imaging System
| Others |
| OASIS | Open Architecture for Scaleable Internet Systems
| Others |
| OASIS | Open Architecture Screen Interface System
| Others |
| OASIS | Open Architecture System Integration Strategy
| Others |
| OASIS | Operater Assisted Sewer Information System
| Others |
| OASIS | Operation Andrew Students Interceding For Students
| Others |
| OASIS | Operational Analysis and Simulation of Integrated Systems
| Others |
| OASIS | Operational and Administrative System for Import Support
| Others |
| OASIS | Operational and Supportability Implementation System
| Others |
| OASIS | Operational Application Support Information Services
| Others |
| OASIS | Opportunities After School for Intellectual Success
| Others |
| OASIS | Opportunities And Strategies Involving Self
| Others |
| OASIS | Opportunity for Academic Success In School
| Others |
| OASIS | Opportunity For Achievement Support Involvement Success
| Others |
| OASIS | Opposing Abuse with Service Information and Shelter
| Others |
| OASIS | Optically Adaptive System for Imaging Spectroscopy
| Others |
| OASIS | Optimal Architecture Sensor Interface System
| Others |
| OASIS | Optimization Of Aquifer Storage For Increased Supply
| Others |
| OASIS | Optimized Action Sequence Interpreter System
| Others |
| OASIS | Oracle Application Software Implementation Strategy
| Others |
| OASIS | Oracle Application SQL Investigation Script
| Others |
| OASIS | Orbis Advanced Security Intruder System
| Others |
| OASIS | Order And Shipment Information System
| Others |
| OASIS | Organization For African Students Interest And Solidarity
| Others |
| OASIS | Organization for the Advancement of Structured Information Standards
| Others |
| OASIS | Organization to Assess Strategies for Ischemic Syndromes
| Others |
| OASIS | Organized, Accurate, Synergistic Information Suite
| Others |
| OASIS | Ornaments And Specialty Ingredients Source
| Others |
| OASIS | Otis Associated Students In Service
| Others |
| OASIS | Our Art Spoken in Soul
| Others |
| OASIS | Outcome and Assessment Information Set
| Others |
| OASIS | Outreach Assisting Students In Schools
| Others |
| OASIS | Outsourced Application Software and Information Services
| Others |
| OASIS | Outstanding Adults Still In Service
| Others |
| OASIS | Ovarian Awareness, Support, Involvement, and Survivorship
| Others |
| OASIS | Overseas Adoption Support And Information System
| Others |
| OASIS | Oxford Asylum Seekers Inclusive Support
| Others |