| Abbreviation | Definition |
|---|---|
| ISDR | International Society for Diatom Research |
| ISDS | International Shepherd Dog Society |
| ISDS | International Skeletal Dysplasia Society |
| ISDS | International Society for Disease Surveillance |
| ISDU | Islamic Society of Deakin University |
| ISE | Institute of Sanitary Engineering |
| ISE | International Society of Electrochemistry |
| ISE | International Society of Endocrinology |
| ISEA | International Society of Experimental Artists |
| ISEA | International Society of Exposure Analysis |
| ISEB | International Society for Educational Biography |
| ISEB | International Society for Environmental Biogeochemistry |
| ISEB | Islamic Society of East Bay |
| ISEC | International Society for Endangered Cats |
| ISECS | International Society for Eighteenth Century Studies |
| ISECS | International Society for Eighteenth-Century Studies |
| ISECS | Société internationale d'étude du dix-huitième siècle |
| ISECS | Socit internationale d'tude du dix-huitime sicle |
| ISEE | International Society for the Enhancement of Eyesight |
| ISEF | International Society of Environmental Forensics |