IBB has the following meanings:
- Implant Borne Bridge
- Indiana Business Bulletin
- International Brotherhood of Boilermakers
- Institute of Bioinformatics and Biotechnology Pune, India.
- Institute of Biochemistry and Biophysics
- Intentional base on balls
- Ibrahim Babangida, former President of Nigeria
- Ibrahim Badamasi Babangida Graduate School of International Studies at the University of Liberia
- International Broadcasting Bureau
- Islamic Bank of Britain
- Incredible Bongo Band
- International Boxing Board