EFS

• Embryonal fyn-associated substrate, encoded by the EFS gene
• Enhancer-FACS-seq, a medical assay
• Estonian Physical Society ({{langx|et|Eesti Füüsika Selts|links=no}})

• Canon EF-S lens mount
• Emergency flotation system, installed on helicopters

• Amazon Elastic File System, a file storage service
• Electronic Filing System, of the Singapore Judiciary
• Electronic Filing System (USPTO), of United States Patent and Trademark office
• Extent File System, used in the IRIX operating system
• Encrypting File System, the encryption subsystem of the NTFS file system

• Emergency Fire Service, now the South Australian Country Fire Service
• Equal Franchise Society, a defunct American women's suffrage advocacy group
• Estrada de Ferro Sorocabana, a Brazilian railway
• Eternal functional subordination, a theological position
• Exchange of futures for swaps
• Expenditure and Food Survey, of the Office for National Statistics in Great Britain
• GE Energy Financial Services, an American energy infrastructure investor
• Swedish Evangelical Mission ({{langx|sv|Evangeliska fosterlandsstiftelsen|link=no}})
• Ethnological Forgery Series, a series of songs by the krautrock band Can

{{canned search|efs}}

• {{lookfrom}}
• {{intitle}}
• EF (disambiguation)
• EFSS (disambiguation)
• ESF (disambiguation)
• SEF (disambiguation)
• SFE (disambiguation)
• FSE (disambiguation)
• FES (disambiguation)

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