| Abbreviation | Definition |
|---|---|
| CES | Current Employment Statistics |
| CESE | Centre for Education Statistics and Evaluation |
| CESS | Conference of European Statistics Stakeholders |
| CHSI | Center for Health Statistics and Informatics |
| CIMES | Centralising and Integrating Metadata from European Statistics |
| CIS | Current Index to Statistics |
| CJSC | Criminal Justice Statistics Center |
| CL | Central Limit |
| CLSP | Commercial Liability Statistical Plan |
| CMN | Cepstral Mean Normalization |
| CMSA | Consolidated Metropolitan Statistical Area |
| CMSA | Consolidated Metropolitan Statistical Areas |
| CNTS | Center for National Truck Statistics |
| CORE | Calculate, Optimize, Reduce, Evaluate |
| COSIT | Central Organization for Statistics and Information Technology |
| COSIT | Central Organization of Statistics Information Technology |
| CPI | Consumer Price Index |
| CRVS | Civil Registration and Vital Statistics |
| CSDA | Computational Statistics and Data Analysis |
| CSDA | Computational Statistics Data Analysis |