| Abbreviation | Definition |
|---|---|
| CIES | Council-certified Indoor Environmental Supervisor |
| CIG | Chief Information Guru |
| CIM | Canadian Investment Manager |
| CIM | Certified Inventory Manager |
| CIME | Certified Independent Medical Examiner |
| CINO | Chief Innovation Officer |
| CIO | Career Is Over |
| CIO | Chief Information Officer |
| CIO | Chief Information Officers |
| CIO | Chief Internet Officer |
| CIO | Coordinating Information Officer |
| CIO | Corporate Information Officer |
| CIP | Career Intern Program |
| CIPE | Certified In Plumbing Engineering |
| CIPO | Chief Intellectual Property Officer |
| CIPO | Critical Infrastructure Protection Officer |
| CIR | Coordinator For International Relations |
| CIR | Coordinator of International Relations |
| CIRA | Certified Insolvency and Restructuring Advisor |
| CIRCA | Communication And Information Resource Centre Administrator |