CIRIS
| Acronym | Definition |
|---|---|
| CIRIS | Completely Integrated Reference Instrumentation System |
| CIRIS | California Inter-Regional Intermodal System (transportation) |
| CIRIS | Critical Infrastructure Response Information System (New York) |
| CIRIS | Consolidated Intelligence Resources Information System (US CIA) |
| CIRIS | Central Inertial Reference Instrumentation System |