| AOI | Abarth Owners International 
| Others |
| AOI | Ability, Opportunity, and Intent
| Others |
| AOI | Absence Of Ink
| Others |
| AOI | Academic Outreach and Innovation
| Others |
| AOI | Active Output Interface
| Others |
| AOI | Add On Instruction
| Others |
| AOI | Adjusted Operating Income
| Others |
| AOI | Advance Ordering Information
| Others |
| AOI | Africa Orientale Italiana
| Others |
| AOI | Age Of Innocence
| Others |
| AOI | Agreement Of Inspection
| Others |
| AOI | Aide Odontologique Internationale
| Others |
| AOI | All in One Installer
| Others |
| AOI | All Original Import
| Others |
| AOI | All Other Income
| Others |
| AOI | Alliance One International
| Others |
| AOI | Ancestry Online Image
| Others |
| AOI | Ancona, Italy
| Others |
| AOI | And Or Invert
| Others |
| AOI | Anemia Of Inflammation
| Others |
| AOI | Angle Of Incidence
| Others |
| AOI | Angle Of IncidenceArab
| Others |
| AOI | Applied Optoelectronics Inc
| Others |
| AOI | Arab Olympiad in Informatics
| Others |
| AOI | Arab Organization for Industrialization
| Others |
| AOI | Arab Organization of Industrialization
| Others |
| AOI | Area Of Improvement
| Others |
| AOI | Areas Of Interaction
| Others |
| AOI | Areas of Interest
| Others |
| AOI | Army of Islam
| Others |
| AOI | Art of Illusion
| Others |
| AOI | Assignment Of Interest
| Others |
| AOI | Associate Office Infrastructure
| Others |
| AOI | Associated Oregon Industries
| Others |
| AOI | Association Of Illustrators
| Others |
| AOI | Association of Optometrists Ireland
| Others |
| AOI | Association of Otolaryngologists of India
| Others |
| AOI | Auditory Osseointegrated Implant
| Others |
| AOI | Auto Owners Insurance
| Others |
| AOI | Automated Optical Inspection
| Others |
| AOI | Automatic Optical Inspection
| Others |
| AOI | Availability of Information
| Others |
| AOI | Avanza Owners Indonesia
| Others |