| Acronym | Definition |
|---|
| OEA➣Organizacion de Estados Americanos (OAS in English) |
| OEA➣Office of External Affairs |
| OEA➣Organização dos Estados Americanos (Portuguese: Organization of American States) |
| OEA➣Oregon Education Association |
| OEA➣Ohio Education Association |
| OEA➣Office of Environmental Adjudication (Indiana) |
| OEA➣Office of Economic Adjustment |
| OEA➣Oklahoma Education Association |
| OEA➣Oxygen Enriched Air |
| OEA➣Ombudsman for Estate Agents (UK) |
| OEA➣Ontario Energy Association (Canada) |
| OEA➣Office of The Employment Advocate (Australia) |
| OEA➣Office of Education Accountability |
| OEA➣Office of Energy Assurance (DOE) |
| OEA➣Office of Employee Appeals |
| OEA➣Omron Electronics Asia (Hong Kong) |
| OEA➣Okaya Electric America |
| OEA➣Oil, Engine, Arctic (US Army) |
| OEA➣Ottawa Economics Association |
| OEA➣Open Enforcement Action |
| OEA➣O'Neal Airport (Vincennes, Indiana, USA) |
| OEA➣Operating Environment Architecture |
| OEA➣Ocean Executive Agent |
| OEA➣Operation and Easement Agreement (real estate leasing) |
| OEA➣Office of Extramural Activities (NIAAA) |
| OEA➣Office Executive Association |
| OEA➣Organization of European Aluminium Refiners & Remelters |
| OEA➣Organizational Expense Account |
| OEA➣Oxygen Evolving Anode |