| Acronym | Definition |
|---|
| IOA➣Independent Olympic Athlete |
| IOA➣Indian Olympic Association |
| IOA➣Islands of Adventure (Universal Studios theme park) |
| IOA➣Institute of Archaeology (University of California, Los Angeles) |
| IOA➣Input Output Adapter |
| IOA➣Institute on Aging (University of North Carolina) |
| IOA➣Institute of Acoustics |
| IOA➣Institute of Astronomy |
| IOA➣International Ozone Association |
| IOA➣International Ombudsman Association (Hillsborough, NJ) |
| IOA➣International Ostomy Association |
| IOA➣Information-Oriented Architecture |
| IOA➣Interobserver Agreement (medicine) |
| IOA➣Input/Output Adapter |
| IOA➣Indiana Optometric Association |
| IOA➣Industrial Operations Analyst (GSA job description) |
| IOA➣International Oversight Advisory (fictional, TV series Stargate) |
| IOA➣Investigators of America |
| IOA➣Integrated Operations Architecture (NASA) |
| IOA➣Ioannina, Greece - Ioannina (Airport Code) |
| IOA➣In Name Of |
| IOA➣International Ornithological Association |
| IOA➣Input/Output Automaton |
| IOA➣Institute of Outdoor Advertising |
| IOA➣Integrated Office Accounting |
| IOA➣Initial Operational Assessment |
| IOA➣International Olympic Athlete (2000 Olympics; now East Timor) |
| IOA➣Independent Orbiter Assessment (Space Shuttle) |
| IOA➣Independent Operational Assessment |
| IOA➣Inductive Output Amplifier |
| IOA➣Integrated Operation Architecture (BMS Software, Inc) |
| IOA➣Immediate Origination Approach |
| IOA➣Instrument Operating Assembly |
| IOA➣Incidence of Aggression |