| Abbreviation | Definition |
|---|---|
| CRWG | Canadian Research Working Group |
| CRYA | Canadian Radio Yachting Association |
| CRYA | Canadian Recreational Yachting Association |
| CSA | Canadian Standards of Approval |
| CSA/ACVM | Canadian Securities Administrators/Autorités canadiennes en valeurs mobilières |
| CSAAA | Canadian Sporting Arms and Ammunition Association |
| CSAAC | Commercial Seed Analysts Association of Canada |
| CSAE | Canadian Society of Association Executives |
| CSAM | Canadian Society of Addiction Medicine |
| CSAS | Canadian Science Advisory Secretariat |
| CSAS | Canadian Special Air Service |
| CSBF | Canada Small Business Financing |
| CSBMCB | Canadian Society for Biochemistry Molecular and Celluar Biology |
| CSBMCB | Canadian Society of Biochemistry Molecular and Cellular Biology |
| CSBMCB | Canadian Society of Biochemistry Molecular Cellular Biology |
| CSBS | Canadian Southern Baptist Seminary |
| CSC | Construction Specifications Canada |
| CSC | Correctional Service Canada |
| CSCA | Canadian Scientific and Christian Affiliation |
| CSCA | Canadian Special Crops Association |