| Abbreviation | Definition |
|---|---|
| CRPC | Chartered Retirement Planning Counselor |
| CRPT | Certified Robotics Production Technician |
| CRR | Certified Realtime Reporter |
| CRS | Certified Residential Specialist |
| CRS | Cognitive Retraining Specialist |
| CRSE | Chief Rolling Stock Engineer |
| CRSP | Canadian Registered Safety Professional |
| CRSP | Certified Recovery Support Practitioner |
| CRT | Certified Respiratory Therapist |
| CRUD | Comedian Replacement Under Development |
| CS | Civil Servant |
| CS | Committee Substitute |
| CS | Computer Scientist |
| CSA | Cashier Sales Associate |
| CSA | Certified Senior Advisor |
| CSA | Chief Software Architect |
| CSA | Community Standard Advisor |
| CSA | Customer Support Advisor |
| CSA | Customer Support Associate |
| CSA | Customized Services Administrator |