An image display device includes: a camera mounted on a vehicle and configured to take an image representing a view behind the vehicle; an image cutouter configured to cut out a second image as a cutout image that is cut out from a first image based on a cutout position representing a position of a portion of the first image in the first image, the first image being taken by the camera; and a display configured to display the second image cut out by the image cutouter. The image cutouter is configured to change the cutout position for the second image in the first image based on a change of an orientation of the vehicle.