| Abbreviation | Definition |
|---|---|
| CSP | Christian Service Projects |
| CSPA | Christian Small Publishers Association |
| CSPC | Catholic School Parent Council |
| CSPL | Christian Software Public License |
| CSPS | Christian Science Publishing Society |
| CSR | Campaign for Surplus Rosaries |
| CSRC | Center for the Study of Religion and Conflict |
| CSS | Catholic Social Services |
| CSSA | Catholic Secondary Schools Association |
| CSSF | Congregation of Sisters Saint Felice |
| CSSF | Felician Sisters |
| CSSG | Christian School Services Group |
| CSSM | Catholic Social Services of Macomb County, Michigan |
| CSSM | Catholic Social Services of Montana |
| CSSOC | Catholic Social Services of Oakland County, Michigan |
| CSSR | Canadian Society for the Study of Religion |
| CSSR | Catholic Social Science Review |
| CSSR | Center for the Study of Science and Religion |
| CSSR | Congregatio Sanctissimi Redemptoris |
| CSSW | Catholic Social Services of Wayne County, Michigan |