| Abbreviation | Definition |
|---|---|
| AOP | Acces Opportunity Programs |
| AOP | Access Opportunity Programs |
| AOP | Acer Open Platform |
| AOP | Acknowledgement Of Paternity |
| AOP | Acknowledgment of Paternity |
| AOP | Acoustic Overload Point |
| AOP | Add On Profile |
| AOP | Adult Occupant Protection |
| AOP | Advanced Observing Program |
| AOP | Advanced Opportunity Program |
| AOP | Adverse Outcome Pathway |
| AOP | Adverse Outcome Pathways |
| AOP | Advice on People |
| AOP | Air Observation Post |
| AOP | Air Operating Permit |
| AOP | Airborne Observation Platform |
| AOP | all other perils |
| AOP | All Over Printing |
| AOP | Alpha Omega Publications |
| AOP | Already Over Promised |