| Acronym | Definition |
|---|
| IRSG➣Internet Research Steering Group |
| IRSG➣International Rubber Study Group |
| IRSG➣Information Retrieval Specialist Group (UK; British Computer Society) |
| IRSG➣Intergroup Rhabdomyosarcoma Study Group |
| IRSG➣Individual Reference Services Group |
| IRSG➣Innovation and Research Systems Group (Australia) |