| Acronym | Definition |
|---|
| AASO➣Associazione Archivio Storico Olivetti (Italian: Olivetti Historical Association Archive) |
| AASO➣Akademia Alternatywnych Systemow Operacyjnych (Polish) |
| AASO➣African-American Student Organization |
| AASO➣Ann Arbor Symphony Orchestra (Michigan) |
| AASO➣Albanian American Student Organization |
| AASO➣Airborne Atmospheric Science Office |
| AASO➣Association of American Ship Owners |
| AASO➣Aboriginal AIDS Service Organizations |
| AASO➣Advanced Audio Server Override (package) |
| AASO➣AmerAsian School in Okinawa |
| AASO➣Army Air Supply Organisation |
| AASO➣Army Aeronautical Service Office |
| AASO➣Analytical Abstraction Stage Operator |
| AASO➣Agency Accounting Systems Office |
| AASO➣Assistant Area Staff Officer |
| AASO➣Annual of the American School of Oriental Research (Cambridge, MA) |
| AASO➣Amateur Astronomical Space Observatory |
| AASO➣Ann Arbor Society for Origami (Michigan) |
| AASO➣Amplatzer Atrial Septal Occluder |
| AASO➣Afro-Asian Solidarity Organisation (Egypt) |
| AASO➣African American Student Overnighter |
| AASO➣Arab-American Student Organization |
| AASO➣Asian American Student Organization |