FR
- .fr
- 5.1 surround sound
- Adobe Fresco
- Ancient Mystical Order Rosae Crucis
- Canton of Fribourg
- Elias Magnus Fries
- F (disambiguation)
- Farbrausch
- Father (honorific)
- Federal Register
- Ffestiniog Railway
- Flame retardant
- Flash release
- Formula Regional
- Formula Renault
- Franc
- France
- Francium
- Frankfurter Rundschau
- Franklin (unit)
- Freiburg
- Freistadt
- French catheter scale
- French language
- Friday
- Front-engine, rear-wheel-drive layout
- Frontier Regions
- Froude number
- Fujitsu FR
- Full Rate
- Furness Railway
- Province of Frosinone
- R (disambiguation)
- RF (disambiguation)
- Ryan FR Fireball
- Ryanair
- SMS language