Ook

Ook, OoK or OOK may refer to:
 * Ook Chung (born 1963), Korean-Canadian writer from Quebec
 * On-off keying, in radio technology
 * Toksook Bay Airport (IATA code OOK), in Alaska
 * Ook!, an esoteric programming language based on Brainfuck
 * Ook, the mascot and name for Northern Alberta Institute of Technology sports teams