| Acronym | Definition |
|---|
| ISPG➣International Society of Psychiatric Genetics |
| ISPG➣International School Peace Gardens (Canada) |
| ISPG➣Internet Special Projects Group (Charles Sturt University; New South Wales, Australia) |
| ISPG➣Irish Seafood Producers Group (Galway, Ireland) |
| ISPG➣Information Services Procurement Group |
| ISPG➣Institute of Sedimentary and Petroleum Geology |