| AATP | Acquired Amegakaryocytic Thrombocytopenic Purpura 
| Others |
| AATP | Adobe Authorized Training Partner
| Others |
| AATP | Advanced Available To Promise
| Others |
| AATP | African American Theatre Program
| Others |
| AATP | African American Theme Program
| Others |
| AATP | Agribusiness Applied Technology Park
| Others |
| AATP | AgriFood Advanced Training Partnership
| Others |
| AATP | Alabama Association of Testing Professionals
| Others |
| AATP | Algorithm Analysis and Task Prediction
| Others |
| AATP | Alice And The Pirates
| Others |
| AATP | All About The Paper
| Others |
| AATP | All About The Presentation
| Others |
| AATP | All America Threaded Products
| Others |
| AATP | American Academy Of Tax Practice
| Others |
| AATP | American Association for Technology in Psychiatry
| Others |
| AATP | American Association of Teachers of Persian
| Others |
| AATP | Americans Against the Tea Party
| Others |
| AATP | Anesthesia Assistant Training Program
| Others |
| AATP | Apple Authorized Training Provider
| Others |
| AATP | Arizona Addiction Treatment Program
| Others |
| AATP | Asian American Theater Project
| Others |
| AATP | Asian American Theater Project (Stanford)
| Others |
| AATP | Asian American Tutorial Project
| Others |
| AATP | Attorney Assistant Training Program
| Others |
| AATP | Auction Agent Transfer Protocol
| Others |
| AATP | Australian Accounting & Taxation Professionals
| Others |
| AATP | Authorized Academic Training Partner
| Others |
| AATP | Authorized Academic Training Program
| Others |
| AATP | Authorized Academic Training Provider
| Others |
| AATP | Average Allocated Transaction Percentage
| Others |
| AATP | Azerbaijan Austrian Tourism Programme
| Others |