JF

JF could refer to:
* Jean-François, common French first name
* Jerry Falwell controversial American Evangelic pastor
* John Frusciante, guitarist of the Red Hot Chili Peppers
* Jon Foreman, lead singer and guitarist of Switchfoot.
* JF Duck, an aircraft
* Jetairfly IATA airline designator
* Junk food
* L.A.B. Flying Service IATA airline designator
* JF, a Mazda piston engine
* Just Frame, a term from the game Soul Calibur, referring to certain moves which must be entered within a specific frame window (ie with specific timing)
* Jardine Fleming