| IBSS | Identity Based Short Signature 
| Others |
| IBSS | IEEE Bombay Section Symposia
| Others |
| IBSS | IEEE Bombay Section Symposium
| Others |
| IBSS | Independent Basic Service Set
| Others |
| IBSS | Infrared Background Signature Survey
| Others |
| IBSS | Infrastructure Basic Service Set
| Others |
| IBSS | Integrated Biomass Supply Systems
| Others |
| IBSS | Interdisciplinary Behavioral and Social Science
| Others |
| IBSS | International Bibliography of the Social Sciences
| Others |
| IBSS | International Bond and Share Society
| Others |
| IBSS | International Breast Shape Standard
| Others |
| IBSS | International Business School of Scandinavia
| Others |
| IBSS | International Business School Suzhou
| Others |
| IBSS | Internet Base Station Service
| Others |
| IBSS | Internet Based Smart Space
| Others |
| IBSS | Introductory Basic Sciences Stream
| Others |
| IBSS | Island Business Systems and Supplies
| Others |