| Abbreviation | Definition |
|---|---|
| EUCD | European Union of Christian Democrats |
| EUCE | European Union Center of Excellence |
| EUCE | European Union Centre for Excellence |
| EUCE | European Union Centre of Excellence |
| EUCE | European Union Centres of Excellence |
| EUCU | European Union Customs Union |
| EUD | Europa Union Deutschland |
| EUDU | Edinburgh University Debates Union |
| EUE | East Union Elementary |
| EUETS | Europe Union Emission Trading Scheme |
| EUETS | European Union Emission Trading Scheme |
| EUETS | European Union Emissions Trading Scheme |
| EUF | Europeiska unionens funktionssätt |
| EUFASA | European Union Foreign Affairs Spouses' Associations |
| EUGS | European Union Global Strategy |
| EUHS | East Union High School |
| EUIBA | European Union Institutions, Bodies and Agencies |
| EUIPO | European Union Intellectual Property Office |
| EUISS | European Union Institute for Security Studies |
| EUL | European Union Letter |