| Abbreviation | Definition |
|---|---|
| AOSS | Always Ongoing Sufficiency System |
| AOSS | Angola Oilfield Supply Service |
| AOSSG | Asia Oceania Standard Setters Group |
| AOSSG | Asia Oceanian Standard Setters Group |
| AOSTF | Agent Orange Scientific Task Force |
| AOSTF | Android Open Source Task Force |
| AOSTF | Arrived On Scene To Find |
| AOT | Accredited Online Training |
| AOT | Acquisition Of Turnover |
| AOT | Advanced One Touch |
| AOT | Advances in Operator Theory |
| AOT | Aeroneutical Of Thailand |
| AOT | Aerosol Optical Thickness |
| AOT | Age of Time |
| AOT | Agency of Trillions |
| AOT | Air On Temperature |
| AOT | Airports of Thailand |
| AOT | Algemene Operationele Techniek |
| AOT | Alignment Optical Telescope |
| AOT | All of Them |