ISID
| 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 |