An image display apparatus includes a plurality of display elements each configured to display an original image, and an observation optical system configured to introduce light fluxes from the plurality of display elements to an exit pupil via a plurality of optical units, and to present a combined image. When a decentering section of each optical unit is defined as a section formed by a principal ray of the light flux introduced to the same image point in the combined image when the principal ray is reflected, the plurality of optical units are arranged so that decentering sections of the plurality of optical units are parallel. The plurality of display elements includes two neighboring display elements, and display planes of the two display elements partially display the same image.