Other
- Financial Reporting
- Ryanair, by IATA airline designator
- Elias Magnus Fries, a botanist whose author abbreviation in citations is Fr.
- Free Republic
- Father (title), a title for a Christian clergyman, especially a priest
- Federal Register, the official journal of the Federal Government of the United States
- First responder
- Formula Renault, a racing class
- Ffestiniog Railway, a tourist attraction in Gwynedd, Wales
Read more about this topic: FR