Ibac is a comics character.
IBAC may refer to:
- IBAC (cycling team)
- in-band adjacent-channel
- Identity-based access control
- Independent Broad-based Anti-corruption Commission (Victoria)
- International Business Audit Consulting (IBAC) (Uzbekistan)
- International Business Aviation Council
- International Balloon Arts Conference (IBAC)
- International Bioacoustics Council