Kōji Kobayashi

Koji Kobayashi may refer to:
 * Kōji Kobayashi (boxer) (born 1957), Japanese boxer
 * Koji Kobayashi (water polo), Japanese water polo player, who participated in Water polo at the 2010 Asian Games – Men
 * Koji Kobayashi (engineer) (1907 – 1996), engineer and namesake of an IEEE Founders Medal
 * Koji Kobayashi, character in Godzilla Raids Again
 * Koji Kobayashi (corporate executive), vice president of Toyota Motor corporation