ERF
- ERF (gene)
- ERF (truck manufacturer)
- Electrorheological fluid
- Enerplus
- Erf (law)
- Erf (river)
- Erfurt-Weimar Airport
- Error function
- Estuarine Research Federation
- Eukaryotic release factors
- European Racquetball Federation
- European Refugee Fund
- Event-related field
- Exponential response formula
- Extreme Reaction Force
- Keith Erf
- Reformed Church of France