Fok or FOK may refer to: People Fok (surname), a list of people with the name FOK FOK!, a Dutch website Prague Symphony Orchestra, a Czech orchestra known by the acronym FOK (Film-Opera-Koncert) Feeling of knowing Fill or kill, an order to buy or sell a stock immediately FOK, IATA airport code and FAA location ID for Francis S. Gabreski Airport, Long Island, New York, United States See also Huo, a Chinese surname pronounced Fok in Cantonese