OIAS
| Acronym | Definition |
|---|---|
| OIAS | Office of Integrated Access and Support (Maine Department of Health and Human Services) |
| OIAS | Owashtanong Islands Audubon Society (Grand Haven, MI) |
| OIAS | Organization of Ibero-American States (Portuguese and Spanish speaking nations) |
| OIAS | Office of International and Area Studies |
| OIAS | Organizational and Individual Assessment Survey |