| Abbreviation | Definition |
|---|---|
| CIIA | Chartered Institute of Internal Auditors |
| CIIA | Construction Industry Institute Australia |
| CIIA | Czech Institute of Internal Auditors |
| CIIB | Central Illinois Institute of Balance |
| CIIC | Correctional Institution Inspection Committee |
| CIID | California Institute for Innovation and Development |
| CIID | China Institute of Interior Design |
| CIID | Copenhagen Institute of Interaction Design |
| CIIDS | China Institute for Innovation and Development Strategy |
| CIIDS | China Institute for Innovation Development Strategy |
| CIIE | Cambridge Institute of International Education |
| CIIL | Central Institute of Indian Languages |
| CIIM | Canadian Institute for Identities and Migration |
| CIIM | Center for Institutional Investment Management |
| CIIM | Cyprus International Institute of Management |
| CIIN | Canadian Institutional Investment Network |
| CIIN | Chartered Insurance Institute Of Nigeria |
| CIIR | Catholic Institute for International Relations |
| CIIR | Center for International Institutions Research |
| CIIR | China Institute of Industrial Relations |