| Abbreviation | Definition |
|---|---|
| CSLA | Church and Synagogue Library Association |
| CSMA | Civil Service Motoring Association |
| CSNA | California School Nutrition Association |
| CSNA | California State Numismatic Association |
| CSNA | California Student Nursing Association |
| CSNA | Calvin Student Nursing Association |
| CSNA | Carey Student Nurses Association |
| CSNA | Colorado School Nutrition Association |
| CSNA | Colorado Student Nurses Association |
| CSOA | Canadian Standard on Association |
| CSOA | Cloverleaf Standardbred Owners Association |
| CSOA | Collegiate Swimming Officials Association |
| CSOA | Commonwealth Soccer Officials Association |
| CSPA | California Scholastic Press Association |
| CSPA | California Software Professional Association |
| CSPA | Canadian Sport Parachuting Association |
| CSPA | Coastside State Parks Association |
| CSPA | Columbia Scholastic Press Association |
| CSPA | Concordia Student Pharmacists Association |
| CSPA | Consumer Specialty Products Association |