| Acronym | Definition |
|---|
| CPSU | Communist Party of the Soviet Union |
| CPSU | Community and Public Sector Union |
| CPSU | Commonwealth Policy Studies Unit (UK) |
| CPSU | Central Power Supply Unit |
| CPSU | California Polytechnic State University (San Luis Obispo, California) |
| CPSU | Civil and Public Service Union |
| CPSU | Central Project Support Unit (India) |
| CPSU | Central Public Sector Undertaking (India) |
| CPSU | Central Punitive Segregation Unit (Rikers Island, New York) |
| CPSU | Combined Primary Storage Unit |
| CPSU | Configurable Processor System Unit (programmable logic device family) |