| Abbreviation | Definition |
|---|---|
| CSDMA | Canadian Steel Door Manufacturers Association |
| CSDS | Canadian Society for Dermatologic Surgery |
| CSEB | Canadian Society for Epidemiology Biostatistics |
| CSEC | Communications Security Establishment Canada |
| CSEE | Canadian Society for Ecology and Evolution |
| CSEM | Canadian Society of Endocrinology and Metabolism |
| CSEW | Canadian Space Exploration Workshop |
| CSF | Conseil Scolaire Francophone |
| CSFF | Canadian Sport Film Festival |
| CSFJ | Canadian Science Fair Journal |
| CSFS | Canadian Society of Forensic Science |
| CSGA | Canadian Seed Growers Association |
| CSGA | Canadian Ski Guide ASSOCIATION |
| CSGA | Canadian Sporting Goods Association |
| CSGP | Canada Student Grants Program |
| CSHM | Canadian School of Hydrocarbon Measurement |
| CSHP | Canadian Society of Hospital Pharmacists |
| CSHPM | Canadian Society for History and Philosophy of Mathematics |
| CSI | Car Systems Installation |
| CSIA | Canadian Ski Instructors' Alliance |