| Abbreviation | Definition |
|---|---|
| CTSA | Catholic Theological Society of America |
| CTSB | Cape Town Society for the Blind |
| CTSP | Center for Technology Society and Policy |
| CTSP | Center for Technology Society Policy |
| CUAS | Champaign Urbana Astronomical Society |
| CUAS | Chicago Urban Art Society |
| CUMS | Canadian University Music Society |
| CUMS | Société de Musique des Universités Canadiennes |
| CUMS | Socit de Musique des Universits Canadiennes |
| CURS | Catahoula United Rescue Society |
| CUS | Chicago Urological Society |
| CUS | Commerce Undergraduate Society |
| CUSS | Communication Undergraduate Student Society |
| CUTG | Conference of University Teachers of German in Great Britain and Ireland |
| CVAS | Conejo Valley Audubon Society |
| CVBS | Central Virginia Blues Society |
| CVBS | Conejo Valley Bonsai Society |
| CVCS | Columbia Valley Cycling Society |
| CVMA | Association Canadienne des Mdecins Vtrinaires |
| CVMA | Association Canadienne des Médecins Vétérinaires |