EFRR
| 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) |