| Acronym | Definition |
|---|
| ECCM | Electronic Counter Countermeasures |
| ECCM | Electronic Counter-Countermeasures |
| ECCM | Education Credit Control Management (South Africa) |
| ECCM | Eastern Caribbean Common Market (Antigua and Barbuda) |
| ECCM | École de Course Croisière Méditerranée (French: Mediterranean School of Sailing Race) |
| ECCM | Essential Care and Condition Monitoring (preventive maintenance programs) |
| ECCM | Emergency and Critical Care Medicine |
| ECCM | Electromagnetic Counter-Countermeasures (less common) |
| ECCM | Eastern Carolina Case Management |