IBEI
| Acronym | Definition |
|---|---|
| IBEI | International Business Ethics Institute |
| IBEI | Istituto Biblico Evangelico Italiano (Italian: Italian Evangelical Bible Institute; Rome, Italy) |
| IBEI | Institute of Biometry, Epidemiology and Information Processing (Hannover, Germany) |
| IBEI | Income before Extraordinary Items (finance) |
| IBEI | In-Beam Electron Impact (spectrometry) |