- AAS stands for American Astronomical Society
- AAS stands for American Antiquarian Society
- AAS stands for Associate of Arts and Science (various schools)
- AAS stands for Applied Arts and Sciences
- AAS stands for African American Studies
- AAS stands for African Academy of Sciences (est. 1985)
- AAS stands for Atomic Absorption Spectroscopy
- AAS stands for Academy of Agricultural Sciences (China)
- AAS stands for Atomic Absorption Spectrometry
- AAS stands for All-America Selections
- AAS stands for All America Selections
- AAS stands for Accounting Advisory Services
- AAS stands for Active Antenna System (wireless technology)