| CIDC | Cancer Immunologic Data Commons 
| Others |
| CIDC | Cape and Islands Democratic Council
| Others |
| CIDC | Carthage Industrial Development Corporation
| Others |
| CIDC | Caspian Investment and Development Corporation
| Others |
| CIDC | Cattle Industry Development Council
| Others |
| CIDC | Center for International Development and Cooperation
| Others |
| CIDC | Certificate in Diabetes Care
| Others |
| CIDC | Chronically Ill and Dependent Children
| Others |
| CIDC | Claremont Improvement District Company
| Others |
| CIDC | Clean Inventory Data Contract
| Others |
| CIDC | Coalition of International Development Companies
| Others |
| CIDC | Colorado Interior Design Coalition
| Others |
| CIDC | Conroe Industrial Development Corporation
| Others |
| CIDC | Construction Industry Development Council
| Others |
| CIDC | Cornell Institute for Digital Collections
| Others |
| CIDC | Council of International Development Companies
| Others |
| CIDC | Criminal Investigation Command
| Others |
| CIDC | Criminal Investigation Division Command
| Others |