| Abbreviation | Definition |
|---|---|
| CNBA | Cities of New Brunswick Association |
| CNCA | Carbon Neutral Cities Alliance |
| CNY | Central New York |
| COB | City Of Bellingham |
| COB | City Of Brownsville |
| COB | Communities Of the Borough |
| COD | City Of Deland |
| COTD | Cities Of The Dead |
| CPPC | Connecting Point of Park Cities |
| CSC | Cities Sports Connection |
| CT | Cartagena, Murcia. |
| DC | Daly City |
| DC | Deserted City |
| DC | Desperation City |
| DIRECT | Diversity Inclusion Racial Equity for Cities Towns |
| DISC | Digital Inclusion in Smart Cities |
| DMC | Deputy Municipal Commissioner |
| DMC | Detroit Metal City |
| DMCCC | Denver Metro Clean Cities Coalition |
| DRT | Dio Re Tro |