| Abbreviation | Definition |
|---|---|
| ENTP | European New Towns Platform |
| ENWA | European Night Without Accident |
| EOA | European Opera Academy |
| EOBC | European Open Beach Championships |
| EOBS | European Open Business School |
| EOC | European Orchid Council |
| EOCA | European Outdoor Conversation Association |
| EOCC | European Organic Certifiers Council |
| EODD | European Organ Donation Day |
| EODP | European Observatory for Democracy and Peace |
| EOE | Eagles Over Europe |
| EOEF | European Offender Employment Forum |
| EOEO | European Organ Exchange Organisation |
| EOFQ | European Organization for Quality |
| EOFS | European Open File System |
| EOHT | European Olympic Hopes Trophy |
| EOI | European Ombudsman Institute |
| EOLT | European On Line Trading |
| EOMF | European Outlet Mall Fund |
| EOPA | European Office Products Awards |