| CSN | Cable Science Network 
| Others |
| CSN | Cadet Student Network
| Others |
| CSN | Calling Service Node
| Others |
| CSN | Calvary Satellite Network
| Others |
| CSN | Cancer Survivors Network
| Others |
| CSN | Car Sharing Network
| Others |
| CSN | Card Select Number
| Others |
| CSN | Card Serial Number
| Others |
| CSN | Carlton Sports Network
| Others |
| CSN | Carrier Service Node
| Others |
| CSN | Carson City Airport, Carson City, Nevada USA
| Others |
| CSN | Catalogue Sequence Number
| Others |
| CSN | Caughley Swansea Nantgarw
| Others |
| CSN | CAx Supplier Network
| Others |
| CSN | Center for Sustainable Nanotechnology
| Others |
| CSN | Center for Systems Neuroscience
| Others |
| CSN | Certified School Nurse
| Others |
| CSN | Certified Sports Nutritionist
| Others |
| CSN | Channel Services Network
| Others |
| CSN | Chemical Speciation Network
| Others |
| CSN | Chick Singer Night
| Others |
| CSN | Child Safety Network
| Others |
| CSN | Children with Special Needs
| Others |
| CSN | Children's Safety Network
| Others |
| CSN | Chintaka Sons Network
| Others |
| CSN | Chip Select Negative
| Others |
| CSN | Chip Select Not
| Others |
| CSN | Christian Satellite Network
| Others |
| CSN | Christian Sports Network
| Others |
| CSN | Circuit switched Network
| Others |
| CSN | Circuit Switching Network
| Others |
| CSN | Cisco Service Node
| Others |
| CSN | Citizen Service Number
| Others |
| CSN | Citrix Solutions Network
| Others |
| CSN | Clean Sheet Night
| Others |
| CSN | Client Server Network
| Others |
| CSN | Clinical Sequencing Nomenclature
| Others |
| CSN | College of Southern Nevada
| Others |
| CSN | Collision Solutions Network
| Others |
| CSN | Colombia Support Network
| Others |
| CSN | Combination Sequence Number
| Others |
| CSN | Comcast Sports Network
| Others |
| CSN | Comcast SportsNet NorthWest
| Others |
| CSN | Commission Scolaire Nouvelle
| Others |
| CSN | Common Services Network
| Others |
| CSN | Common Shareholder Number
| Others |
| CSN | Communication Service Network
| Others |
| CSN | Community School of Naples
| Others |
| CSN | Community Seismic Network
| Others |
| CSN | Community Service Network
| Others |
| CSN | Community Services Network
| Others |
| CSN | Community Support Network
| Others |
| CSN | Companhia Siderurgica National
| Others |
| CSN | Compaq Services Network
| Others |
| CSN | Compound subject noun
| Others |
| CSN | Computer Says No
| Others |
| CSN | computer Systems and
| Others |
| CSN | Comunidad Sudamericana de Naciones (Spanish, South American Community of Nations)
| Others |
| CSN | Connectivity Service Network
| Others |
| CSN | Consejo de Seguridad Nuclear
| Others |
| CSN | Consolidated Sales Network
| Others |
| CSN | Consumer/Survivor Network
| Others |
| CSN | Contact Serial Number
| Others |
| CSN | Converged Services Node
| Others |
| CSN | Convergent Science Network
| Others |
| CSN | Core Schema Notation
| Others |
| CSN | Core Service Network
| Others |
| CSN | Cougar School Network
| Others |
| CSN | Course Subject Number
| Others |
| CSN | CPF Submission Number
| Others |
| CSN | Crayons Sketching Nudes
| Others |
| CSN | Crosby Stills and Nash
| Others |
| CSN | Crosby, Stills, and Nash
| Others |
| CSN | Cumulated Sum Of New
| Others |
| CSN | Customer Service Number
| Others |
| CSN | Customer Services Network
| Others |
| CSN | Customer Support Network
| Others |
| CSN | Cvent Supplier Network
| Others |
| CSN | Cyber Sports Network
| Others |
| CSN | Cybercrime Support Network
| Others |
| CSN | Cycle Since New
| Others |
| CSN | Cycles Since New
| Others |