| Abbreviation | Definition |
|---|---|
| ISCS | Associazione Italiana per la Simulazione con il Calcolatore |
| ISCS | Inner Sphere Cartography Society |
| ISCS | International Sand Collectors Society |
| ISCS | International Society for Construction Sciences |
| ISCS | Islamic Society of Colorado Springs |
| ISCS | Italian Society for Computer Simulation |
| ISCS | Societ Italiana per la Simulazione con il Calcolatore |
| ISCS | Società Italiana per la Simulazione con il Calcolatore |
| ISCT | International Society for Cellular Therapy |
| ISCT | International Society of Chen Taijiquan |
| ISD | Islamic Society of Delaware |
| ISDB | International Society of Developmental Biologists |
| ISDB | International Society of Drug Bulletins |
| ISDC | Irish Society of Dentistry for Children |
| ISDCI | International Society of Developmental and Comparative Immunology |
| ISDE | International Society for Digital Earth |
| ISDG | International Society on Dynamic Games |
| ISDIS | International Society for Digital Imaging of the Skin (New York, NY) |
| ISDM | International Society of Deliverance Ministers |
| ISDM | International Society of Digital Medicine |