| Acronym | Definition |
|---|
| IBUB➣Institute of Biomedicine, University of Barcelona (Barcelona, Spain) |
| IBUB➣Igreja Batista Unida do Brás (Brazilian church) |
| IBUB➣International Business University of Beijing (Beijing, China) |
| IBUB➣International Brotherhood of United Bikers |
| IBUB➣Ingenieurbüro Ulrich Brüggenwirth Ingenieurbüro (German engineering company) |
| IBUB➣Integrierten Bremer-Umwelt-Beratung (German: Bremer Integrated Environmental Consulting) |