| CSSM | Canadian Sunday School Mission 
| Others |
| CSSM | Case Studies in Sport Management
| Others |
| CSSM | Catholic Social Services of Macomb County, Michigan
| Others |
| CSSM | Catholic Social Services of Montana
| Others |
| CSSM | Celtic Society of Southern Maryland
| Others |
| CSSM | Center For Subatomic Structures Of Matter
| Others |
| CSSM | Center for Survey Statistics and Methodology
| Others |
| CSSM | Center for the Study of Social Movements
| Others |
| CSSM | Center for the Study of Society and Medicine
| Others |
| CSSM | Centre for Statistics and Stochastic Modelling
| Others |
| CSSM | Certified in Security Supervision and Management
| Others |
| CSSM | Certified Self Storage Manager
| Others |
| CSSM | Certified Surgical Services Manager
| Others |
| CSSM | Chandraketugarh Sahidullah Smriti Mahavidyalaya
| Others |
| CSSM | Children's Special Service Mission
| Others |
| CSSM | Cleveland School of Science and Medicine
| Others |
| CSSM | Cloud Scene Simulation Model
| Others |
| CSSM | Columbus School of Supernatural Ministry
| Others |
| CSSM | Come Single Soon Married
| Others |
| CSSM | Common Security Services Manager
| Others |
| CSSM | Comp Soft Sys Matlab
| Others |
| CSSM | Computational Social Science Modeling
| Others |
| CSSM | Contactless Security Screening Measures
| Others |
| CSSM | Content Standard for Spatial Metadata
| Others |
| CSSM | Continuous Safety Sampling Methodology
| Others |
| CSSM | Convergence School of Supernatural Ministry
| Others |
| CSSM | Corporate Service Supply and Manufacturing
| Others |