| Abbreviation | Definition |
|---|---|
| CS | Computer Spirituality |
| CSA | Catholic Services Appeal |
| CSA | Christian Stewardship Association |
| CSAC | Catholic School Advisory Committee |
| CSAF | Catholic Services Appeal Foundation |
| CSAF | Christian Sports and Fellowship |
| CSAG | Cedar Springs Assembly of God |
| CSAI | Catholic Scout Association in Israel |
| CSALT | Christian School Assembly Link Team |
| CSALT | Christian Surfers Africa Leadership Training |
| CSB | Christian Science Bachelor |
| CSB | Christian Service Brigade |
| CSB | Congregation of St. Basil (Bernardine Sisters) |
| CSBC | California Southern Baptist Convention |
| CSC | Christian Service Committee |
| CSC | Church of Scientology of California |
| CSC | Congregatio a Sancta Cruce |
| CSC | Congregatio de Sanctus Cruce |
| CSC | Congregatio Sanctae Crucis |
| CSCA | Canadian Scientific and Christian Affiliation |