A behavior prediction system includes an information obtainer, a probability distribution model generator, a map generator, and a display. The information obtainer obtains information on a traveling direction of a moving object whose behavior is to be predicted. The probability distribution model generator generates a probability distribution model regarding a traveling direction of the moving object based on the information on an obtained traveling direction of the moving object. The map generator uses the probability distribution model to calculate probabilities that the moving object passes through respective areas into which a movable region of the moving object is divided and that generates a probability map in which the probabilities are assigned to the respective areas. The display displays the probability map.