An image processing device includes a generation unit that generates a first display image on the basis of image signals from an imaging element that includes first and second pixel groups at which a subject image is pupil-divided and formed, and a second display image to be used for focus confirmation; a parallax calculation unit that calculates a parallax between pixels of a first image and pixels of a second image; a display unit that displays images; and a display control unit, wherein the generation unit generates the second display image by arranging the first divided image, which is a first image part, and the second divided image, which is the second image excluding regions corresponding to the first divided image, to be shifted by amounts corresponding to the parallax in opposing directions in an intersectional direction intersecting a division direction.