CERO
| Acronym | Definition |
|---|---|
| CERO | Computer Entertainment Rating Organization |
| CERO | Close Encounter Resource Organization |
| CERO | Command Evaluation and Review Office (US Navy) |
| CERO | Central Emergency Relief Organization (Barbados) |
| CERO | Computer Entertainment Rating Organization (Japan) |
| CERO | Chief Electrician Radio Operator (US Navy rank) |
| CERO | Coronado Emergency Radio Operators (Coronado, CA) |
| CERO | Columbia Educational Resources Online |