| Acronym | Definition |
|---|
| ISID➣Idle Signal Identification |
| ISID➣Institute for Studies in Industrial Development |
| ISID➣Inter-Services Intelligence Directorate (Pakistan) |
| ISID➣Service Instance Identifier |
| ISID➣International Society of Interior Designers |
| ISID➣International Society for Infectious Disease |
| ISID➣Information Systems Integration Division (SAIC) |
| ISID➣International Ship Information Database |
| ISID➣International Ship Identification Database |