F11

F11 or F-11 may refer to:

Military

 * F 11 Nyköping, a Swedish Air Force wing
 * F-11 Tiger, a 1954 U.S. Navy jet fighter originally designated F11F
 * F11C Goshawk, a 1932 U.S. Navy biplane fighter
 * Hughes XF-11, a 1946 U.S. Army Air Forces reconnaissance aircraft prototype

Science and academia

 * Trichlorofluoromethane, a refrigerant used before 1995
 * Factor XI, a clotting agent found in blood

Sports

 * F11 (classification), a classification in para-athletics

Technology

 * , a function key on a computer keyboard (enters and exits fullscreen mode in many web browsers)
 * Fujifilm FinePix F11, a digital camera model

Transportation

 * Chery F11, a 2008 Chinese Chery Automobile model
 * Fairchild F-11 Husky, a 1946 Canadian bush plane
 * Falconar F11 Sporty, a Canadian amateur-built aircraft design
 * Fokker F.11, a 1928 flying boat

Other uses

 * Finger Eleven, a Canadian alternative rock band
 * Forest Eleven, a group of rainforest countries