DCSI
| Acronym | Definition |
|---|---|
| DCSI | Detective Chief Superintendent (UK) |
| DCSI | Deputy Chief of Staff for Intelligence (Army) |
| DCSI | Department of Community Supervision and Intervention |
| DCSI | Docan Computer Systems International |
| DCSI | Dalhousie Computer Science In-House Conference |
| DCSI | Data and Control Signal Interface (NASA) |
| DCSI | Defense Communications System Installation |
| DCSI | Data Channel Status Indicator |