| Abbreviation | Definition |
|---|---|
| CSSR | Council of Societies for the Study of Religion |
| CSSS | Council of State Science Supervisors |
| CSTA | Council of Science and Technology Advisors |
| CSTC | Carrier Sekani Tribal Council |
| CSTI | Council for Science Technology and Innovation |
| CSVE | Council Standards of Venturing Excellence |
| CSWC | Columbia Slough Watershed Council |
| CSWD | Council on Size and Weight Discrimination |
| CSWE | Council on Social Work Education |
| CSWE | Council Social work education |
| CTAA | Council Of Turkic American Associations |
| CTASC | Counter Terrorism and Security Council |
| CTDR | Council Tax Discretionary Relief |
| CTFC | Cape Town Fashion Council |
| CTHC | Cooperative Tug Hill Council |
| CTLC | Campus Technology Leaders Council |
| CTSC | Cleveland Technical Societies Council |
| CTTE | Council on Technology Teacher Education |
| CUCI | Council of Unions in Colleges and Institutes |
| CUIBO | Council of U Idaho Business Officers |