| Abbreviation | Definition |
|---|---|
| CHOC | Children Hospital of Orange County |
| CHOC | Childrens Hospital of Orange County |
| CHOC | Children's Hospital of Orange County |
| CHPL | Cincinnati and Hamilton County Public Library |
| CHRR | County Health Rankings and Roadmaps |
| CHWC | Catholic Housing of Wyandotte County |
| CICF | County Innovation Challenge Fund |
| CINCH | Council for Interpreting North County History |
| CIRA | County Information Resources Agency |
| CLEC | County Law Enforcement Chiefs |
| CLHS | County Line High School |
| CLSA | County Lighting Service Area |
| CLY | County of London Yeomanry |
| CMCCC | Community Mediation Center of Calvert County |
| CMCL | Cape May County Library |
| CMHT | Counties Manukau Homecare Trust |
| CMOH | County Medical Officer of Health |
| CMT | County Music Television |
| CMTRS | County Meridian Township Range And Section |
| CNAP | County Nutrition Action Partnership |