Provided is a reading apparatus of the present invention, including: an image pickup element configured to pick up an image of an object; a first optical system including at least one reflection surface configured to reflect a light flux from the object, the first optical system being configured to form an intermediate image of the object; and a second optical system configured to image the intermediate image onto a light-receiving surface of the image pickup element, in which: the at least one reflection surface includes a first reflection surface which is closest to the light-receiving surface on an optical path, and which has a positive power; and the following condition is satisfied: 5≤TD/IML≤20 where TD represents a maximum distance from the first reflection surface to the light-receiving surface on the optical path, and IML represents a maximum image height of the second optical system.