Flapjack may refer to:
Food Flapjack (oat bar), a sweet tray-baked bar in British and Commonwealth cuisine Pancake, a flat cake made from batter, sometimes known as a "flapjack"
Organisms Flapjack lobster (Ibacus peronii), a crustacean that lives in shallow waters around Australia Flapjack octopus (Opisthoteuthis californiana), a deep-sea mollusc Flapjack (plant) (Kalanchoe luciae and Kalanchoe thyrsiflora), native to South Africa
Entertainment The animated series The Marvelous Misadventures of Flapjack
Other uses Flapjack, a throw in professional wrestling Flapjack River, a tributary of Mattawa Bay of the Gouin Reservoir in La Tuque, Quebec, Canada Flying Flapjack, nickname of the Vought XF5U experimental U.S. Navy World War II aircraft
See also Flapjax, a computer programming language