| Acronym | Definition |
|---|
| AEO | American Eagle Outfitters |
| AEO | Authorised Economic Operator (EU) |
| AEO | Annual Energy Outlook (US DoE, EIA) |
| AEO | African Economic Outlook |
| AEO | Association for Enterprise Opportunity |
| AEO | Agricultural Extension Officer (various organizations) |
| AEO | Association of Exhibition Organisers |
| AEO | Association of Event Organisers (UK) |
| AEO | Alpha Epsilon Omega (Armenian fraternity) |
| AEO | Atomic Energy Organization |
| AEO | Arranged Employment Opinion (Canada) |
| AEO | Assistant Executive Officer |
| AEO | Air Electronics Officer (Royal Air Force) |
| AEO | All Engines Operating |
| AEO | Applications Electroniques de l'Ouest (French electronics manufacturer) |
| AEO | Aboriginal Education Officer (Equity Standards Branch, Department of Education, Tasmania) |
| AEO | Alternative Episcopal Oversight |
| AEO | All Except One |
| AEO | Association de l'Ecole Odontologique (French: Association of Dental Schools) |
| AEO | Allah'a Emanet Ol (Turkish) |
| AEO | Advanced Environmental Options, Inc. (Spartanburg, SC) |
| AEO | Alliance Executive Office |
| AEO | Ada Executive Officer |
| AEO | Air Engineer Officer |
| AEO | Airworthiness Engineering Organizations |
| AEO | Apple Events Object model |
| AEO | Actual Exhaust Oxygen |
| AEO | Army Energy Office (US Army) |
| AEO | Acoustoelectrical Oscillator |