| ISDE | Institute for Space and Defense Electronics 
| Others |
| ISDE | Integrated Social Development Effort
| Others |
| ISDE | International Six Day Enduro
| Others |
| ISDE | International Six Days Enduro
| Others |
| ISDE | International Six Days of Enduro
| Others |
| ISDE | International Society for Digital Earth
| Others |
| ISDE | International Society for Diseases of the Esophagus
| Others |
| ISDE | International Society of Difference Equations
| Others |
| ISDE | International Society of Doctors for the Environment
| Others |
| ISDE | Irish Spatial Data Exchange
| Others |