FOC

FOC may refer to:

• Father of the Chapel, a trade union official
• First order condition, an equation used to calculate a minimum or a maximum
• Flag of convenience
• Free of charge
• Workers Front of Catalonia (Front Obrer de Catalunya)
• Freight Operating Company UK Train System code
• Full operational capability a term in military acquisition
• Festival of Code, a yearly computer programming event for young people
• IATA code for Fuzhou Changle International Airport
• Friend of the Court

Communications and technology

• Fiber optic cable
• Firm order commitment, the scheduled installation date for telecommunication services or scheduled transfer date in local number portability.
• First Class CW Operators' Club, an Amateur Radio Morse code organisation
• Field-oriented control, "a maths-intensive technique for controlling brushless dc and ac induction motors"
• the Faint Object Camera, as used in the Hubble Space Telescope
• Fraction organic carbon in the field of hydrogeology
• Fiber Optic Components

Entertainment

• FOC (album), debut album by Australian rock group Far Out Corporation
• Flag of Convenience (band), rock group formed by former members of Buzzcocks
• Transformers: Fall of Cybertron
• Flight of the Conchords, a Grammy Award-winning New Zealand comedy duo composed of Bret McKenzie and Jemaine Clement.
• Star Wars: Empire at War: Forces of Corruption, an expansion for the game Star Wars: Empire at War