| Acronym | Definition |
|---|
| EFRR➣Europejskiego Funduszu Rozwoju Regionalnego (Polish: European Regional Development Fund) |
| EFRR➣Egyptian Foundation for Refugee Rights (est. 2008) |
| EFRR➣European Federation for Research in Rehabilitation (est. 1983; Germany) |
| EFRR➣Elfin Forest Recreational Reserve (California) |