- AAAS stands for American Association for the Advancement of Science
- AAAS stands for American Academy of Arts and Sciences
- AAAS stands for African and African-American Studies
- AAAS stands for Association for Asian American Studies
- AAAS stands for Australian Accounting and Auditing Standards
- AAAS stands for Annales Archéologiques Arabes Syriennes (French: Syrian Arab Archaeological Journal)
- AAAS stands for Associate in Applied Arts and Sciences
- AAAS stands for Amphibious Aviation Assault Ship
- AAAS stands for American Association of Asian Studies
- AAAS stands for Advanced Aircraft Armament System
- AAAS stands for Armored Antiaircraft System
- AAAS stands for Authentication, Authorization, and Accounting Server
AACF