FOI, foi, or Foi may refer to:
Organisations
- Family Opera Initiative, an American opera company
- Fellowship of Isis, an international spiritual organization
- Forum Oratori Italiani, a Catholic youth organization
- Fruit of Islam, a paramilitary wing of the Nation of Islam
- Swedish Defence Research Agency (Swedish: (FOI))
Other uses
- Freedom of information, the freedom of a person or people to publish and consume information
- Sainte-Foi, a commune in France
- Foi, a village in Romania
- Foi language, Papua New Guinea (ISO 639-3 code: foi)
See also
- Saint Faith (French: ), a third-century French saint
- Foy (disambiguation)
- FOIA (disambiguation)