- AAII stands for American Association of Individual Investors
- AAII stands for Alabama Aircraft Industries, Inc. (Birmingham, AL)
- AAII stands for Aristolochic Acid II (toxicology)
- AAII stands for African American Islamic Institute
- AAII stands for Ad Astra International Inc. (study programs; Canada)
- AAII stands for Australia Artificial Intelligence Institute
Abbreviations And Their Meaning