CPSB
| Acronym | Definition |
|---|---|
| CPSB | Calcasieu Parish School Board (Lake Charles, LA) |
| CPSB | Compact Packet-Switching Backplane (802.3 Ethernet standard) |
| CPSB | City Public Service Board |
| CPSB | China Postal Savings Bank |
| CPSB | Cameron Parish School Board (Louisiana) |
| CPSB | Consumer Product Safety Bureau (Canada) |