| CSRS | Canadian Silver Recovery Service 
| Others |
| CSRS | Canadian Spatial Reference System
| Others |
| CSRS | Cellular Signaling and Regulatory
| Others |
| CSRS | Cellular Signaling and Regulatory Systems
| Others |
| CSRS | Center for the Study of Religion and Society
| Others |
| CSRS | Certified Stroke Rehabilitation Specialist
| Others |
| CSRS | Cervical Spine Research Society
| Others |
| CSRS | Child Safety Restraint System
| Others |
| CSRS | Child Safety Restraint Systems
| Others |
| CSRS | Civil Service Retirement System
| Others |
| CSRS | Combat Service Ration Study
| Others |
| CSRS | Common Structural Rules Software
| Others |
| CSRS | Community Status Resolution Service
| Others |
| CSRS | Controlled Substance Reporting System
| Others |
| CSRS | Controlled Substances Reporting System
| Others |