| CSNA | California School Nutrition Association 
| Others |
| CSNA | California State Numismatic Association
| Others |
| CSNA | California Student Nursing Association
| Others |
| CSNA | Calvin Student Nursing Association
| Others |
| CSNA | Cardozo Shaw Neighborhood Association
| Others |
| CSNA | Carey Student Nurses Association
| Others |
| CSNA | Center for Systems Neurogenetics of Addiction
| Others |
| CSNA | Certified Special Needs Advisor
| Others |
| CSNA | Certified Stormshield Network Administrator
| Others |
| CSNA | China Shipping North America
| Others |
| CSNA | Chinese Social Networks Authentication
| Others |
| CSNA | Christian Science Nursing Arts
| Others |
| CSNA | Cisco Systems Network Architecture
| Others |
| CSNA | Classification Society of North America
| Others |
| CSNA | Colorado School Nutrition Association
| Others |
| CSNA | Colorado Springs Neurological Associates
| Others |
| CSNA | Colorado Student Nurses Association
| Others |
| CSNA | Comisia Sportiva Nationala Auto
| Others |
| CSNA | Comprehensive Statewide Needs Assessment
| Others |
| CSNA | Consolidated Services of North America
| Others |
| CSNA | Convenience Stores and Newsagents Association
| Others |
| CSNA | Convenience Stores News Agents
| Others |
| CSNA | Crisis Services of North Alabama
| Others |