EFS
EFS stands for:
- EFS Flug-Service , a German charter airline
- EFS Hausgeräte , a home appliance company
- Eilun Feer Skuul , grammar school and regional school in Wyk auf Föhr
- Standard system of flat connectors , a common standard in the GDR for connectors in the computer sector
- Encrypting File System , system for file encryption under Microsoft Windows
- Extent File System, a file system from Silicon Graphics that was used up to IRIX 5 and was superseded by XFS, see XFS (file system)