FX, F-X, F/X, Fx, or fx may refer to:
Arts, entertainment, and media
Effects
FX, as in:
Music
Groups and labels
- f(x) (group), South Korean girl group
- Negative FX, a hardcore rock band
Other uses in music
- "FX", a song on Vol. 4 (Black Sabbath album)
Television channels
- FX (TV channel) along with its international networks, include:
- FX (Asia), defunct
- FX (Canada)
- FX (Greece)
- FX (India), defunct
- FX (Italian TV channel), defunct
- FX (Latin America)
- FX (Portugal), known as Fox Comedy since 2015
- FX (Australia), defunct
- Fox (UK and Ireland), British television channel formerly known as FX
- FX (Polish TV channel)
Other uses in arts, entertainment, and media
- FX (comics), a comic book series
- FX (magazine), a UK trade magazine
- F/X, a 1986 American action-thriller film
- F/X2, a 1991 action-thriller sequel to the 1986 film
- F/X: The Series, a television program based on the 1986 film
Brands and enterprises
- FX Airguns, Swedish airgun manufacturer
- FX format, Nikon's nomenclature for the full-frame digital SLR camera
- FedEx Express, IATA airline code FX
- Fuji Xerox, or FX, a Japanese document management company
Computing
- AMD FX, AMD's processor
- Athlon 64 FX processor
- Firefox, a web browser
- GeForce FX graphics processing unit
- JavaFX, a software platform
- Super FX, a SNES coprocessor
Economics and finance
- Foreign exchange (disambiguation)
- Foreign exchange market, forex or FX
Healthcare and science
- Fx, medical shorthand for a bone fracture
- Factor X, a protein involved in coagulation
Vehicles
- Holden 48-215, unofficially FX, Australian car
- Infiniti FX, an SUV
- Tecma FX, a French hang glider
- Toyota Kijang or Tamaraw FX, an SUV
- FX, the former term for UV Express in the Philippines
Aviation
- Fighter Experimental:
- FX (Fighter Experimental), specifications for two US Naval fighter projects
- F-X (Fighter, Unknown designation number), ultimately USAF F-15 Eagle and General Dynamics F-16
- KFX/IFX, Indonesian fighter program
- KF-X, South Korean fighter program
Other uses
- f(x), functions in mathematics
- F. X. Hadi Rudyatmo (born 1960), Indonesian politician and former Mayor of Surakarta
- Floor exercise, gymnastics event
- Foreign exchange service (telecommunications), a telephone connection to a distant exchange
- Frequent Express, a transit service provided by TriMet in Portland and Gresham, Oregon
