| Abbreviation | Definition |
|---|---|
| CKMD | Composite Kinase Mutation Database |
| CLAIT | Computer Literacy And Information Technology |
| CLCD | Children's Literature Comprehensive Database |
| CLCD | Chinese Life Cycle Database |
| CLD | ClamAV Local Database |
| CLDB | Cell Line Data Base |
| CLHD | Cerbero Linux Hardware Database |
| CLMD | Chemically Labeled Metabolite Database |
| CLSID | Class IDentifier |
| CLUT | Color Look-Up Table |
| CMDB | Configuration And Management Database But |
| CMDB | Configuration Management Database |
| CNAD | Czech National Authority Database |
| CNT | CouNT |
| COCA | Collaborative Objects Coordination Architecture |
| COCD | Centralized Online Course Database |
| COD | Compact Object Description |
| COD | Crystallography Open Database |
| CODASOL | COnference on DAta Systems Languages |
| CODI | Comprehensive Olduvai Database Initiative |