| Acronym | Definition |
|---|
| CSSB➣Combat Sustainment Support Battalion |
| CSSB➣County Social Service Board (North Dakota) |
| CSSB➣Centre for Systems and Synthetic Biology (various locations) |
| CSSB➣Committee Substitute Senate Bill |
| CSSB➣Cedar Shake & Shingle Bureau |
| CSSB➣Civil Service Selection Board (United Kingdom) |
| CSSB➣Compatible Single Sideband |
| CSSB➣Companded Single Sideband |
| CSSB➣Civil Service Steering Board (UK) |
| CSSB➣Combat Services Support Battalion (Australian military) |
| CSSB➣Calgary Stampede Show Band |
| CSSB➣Combat System Switch Board |
| CSSB➣Complexe Scolaire Synergie Bobinguet (Burkina Faso school) |
| CSSB➣Compagnie Secouriste Sainte Barbe (French Catholic association for teenagers) |