| OIAD | Dezful, Iran | |
| OIAE | Office of Institutional Assessment and Evaluation | |
| OIAE | Organismos de Investimento Alternativo Especializado | |
| OIAE | Office of Institutional Analysis and Effectiveness | |
| OIAE | Office of Institutional Access and Equity | |
| OIAE | Office of Integrated Award Environment | |
| OIAE | Office of Internal Audit and Evaluation | |
| OIAG | Aghajari, Iran | |
| OIAH | Gachsaran, Iran | |
| OIAHST | Oh, It All Hurts So Terribly | |
| OIAI | Masjed Soleiman, Iran | |
| OIAI | Once In Always In | |
| OIAI | Office of Internal Audit and Investigations | |
| OIAI | Office of Institutional Advancement and Internationalization | |
| OIAI | Ohio Israel Agricultural Initiative | |
| OIAI | Other Intra Abdominal Infections | |
| OIAI | Orthopedic Implant Associated Infections | |
| OIAI | Office of Institutional Assurance and Integrity | |
| OIAJ | Omidyeh, Iran | |
| OIAK | Haft-Gel, Iran | |
| OIAL | Lali, Iran | |
| OIAL | Oilfield Insurance Agencies Limited | |
| OIAL | Once in a Lifetime | |
| OIAL | Okay I Actually Laughed | |
| OIAL | Office of Impact Assessment and Learning |
