| Abbreviation | Definition |
|---|---|
| AOHI | Areas of Historic Interest |
| AOI | Active Output Interface |
| AOI | Aide Odontologique Internationale |
| AOI | All in One Installer |
| AOI | All Original Import |
| AOI | Alliance One International |
| AOI | Arab Organization for Industrialization |
| AOI | Areas of Interest |
| AOI | Art of Illusion |
| AOI | Associated Oregon Industries |
| AOI | Association Of Illustrators |
| AOI | Availability of Information |
| AOIA | Aerodrome Operator Interface Arrangement |
| AOIA | Akademicki O[rodek Inicjatyw Artystycznych |
| AOIA | Akademicki Osrodek Inicjatyw Artystycznych |
| AOIA | Akademicki Ośrodek Inicjatyw Artystycznych |
| AOIA | Ambivalence or is it ambiguity |
| AOIA | American Osteopathic Information Association |
| AOIA | Anarchy Online Item Assistant |
| AOIA | Arizona Optics Industry Association |