| Acronym | Meaning |
| CIA | Central Intelligence Agency (US government) |
| CIA | Canadian Infantry Association |
| CIA | Captured In Action |
| CIA | Certified Internal Auditor |
| CIA | Change Impact Assessment |
| CIA | Charitable Immunity Act |
| CIA | Citizens Information Academy (Estes Park, Colorado) |
| CIA | Commercial Industrial Agricultural |
| CIA | Community Impact Analysis |
| CIA | Consumer Information Act |
| CIA | Control Indicator Assembly |
| CIA | Control Interface Assembly |
| CIA | Controlled Industrial Area |
| CIA | Corporate Integrity Agreement |
| CIA | Cumulative Impact Area |