EFS

EFS may refer to:

• Electrochemical Fatigue Sensor, an instrument that detects very small growing fatigue cracks in metals
• Electronic Filing System, an electronic platform by the Singapore Judiciary
• Electronic Filing System, an electronic platform for the United States Patent & Trademark office
• Emergency Fire Service, now Country Fire Service (Australia)
• Emperor of the Fading Suns, a turn-based, strategy video-game
• Encrypting File System, the encryption subsystem of the NTFS file system
• Extent File System, a file system used in the IRIX operating system
• Estrada de Ferro Sorocabana, a Brazilian railway
• European Federation of Sexology, an organisation for sexology in Europe
• Ethnological Forgery Series (E.F.S), a series of songs by the krautrock band Can
• Escape from Samsara, a London based nightclub
• EF-S, a derivative of Canon's EF lens mount
• Swedish Evangelical Mission, abbreviated EFS (Evangeliska fosterlandsstiftelsen in Swedish)
• Endian Firewall System, an open source firewall system
• Expenditure and Food Survey, a statistical survey conducted annually by the Office for National Statistics in Great Britain