| Abbreviation | Definition |
|---|---|
| ISPI | International Society of Performance Improvement |
| ISPN | International Society for Phylogenetic Nomenclature |
| ISPNE | International Society of Psychoneuroendocrinology |
| ISPO | Information Society Promotion Office |
| ISPO | International Society for Prosthetics and Orthotics |
| ISPOR | International Society for Pharmacoeconomics and Outcomes Research |
| ISPP | International Society for Plant Pathology |
| ISPP | International Society for Psychoanalysis and Philosophy |
| ISPP | International Society of Plant Pathology |
| ISPP | International Society of Proprioception and Posture |
| ISPR | Indian Society of |
| ISPRS | International Society for Photogrammetry and Remote Sensing |
| ISPRS | Internationale Gesellschaft fr Photogrammetrie und Fernerkundung |
| ISPRS | Internationale Gesellschaft für Photogrammetrie und Fernerkundung |
| ISPRS | Société Internationale de Photogrammétrie et de Télédétection |
| ISPRS | Socit Internationale de Photogrammtrie et de Tldtection |
| ISPS | International Society for PSychological and social |
| ISPS | International Society of Police Surgeons |
| ISPSO | International Society for the Psychoanalytic Study of Organizations |
| ISQ | Indian Society for Quality |