Rank | Abbreviation | Meaning |
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***** | IOAA | Institute of Actuaries of Australia
| |
**** | IOAA | International Olympiad on Astronomy and Astrophysics
| |
**** | IOAA | Immediate Office of the Assistant Administrator
| |
**** | IOAA | Israel Office of Academic Affairs
| |
*** | IOAA | Independent Office Appropriations Act
| |
*** | IOAA | International Olympiad of Astronomy
| |
*** | IOAA | Intentions of an Asteroid
| |
*** | IOAA | International Observatory on Academic Achievement
| |
*** | IOAA | Intentions of an Arsonist
| |
** | IOAA | Image of an Assassination
| |
** | IOAA | International Operating Authority Agreement
| |
** | IOAA | Implementation Of An Alternative
| |
** | IOAA | Indian Ocean Angling Adventures
| |