AIG is American International Group, a major American insurance corporation.
AIG may also refer to:
- And-inverter graph, a concept in computer theory
- Answers in Genesis, a young-earth creationist organization in the U.S.
- Arta Industrial Group in Iran
- Aigburth railway station (National Rail code) in Liverpool, England
- A.I.G. or Allah Is God, a Wu-Tang Clan affiliate
- Asian Indoor Games