A camera unit and an apparatus for monitoring a vehicle periphery, which are capable of picking up a wide range of a visual field while adequately adjusting the visual fields in the horizontal and vertical directions, and at the same time, improving visual confirmation of images displayed. The camera unit may include a pickup element, a lens system in which light rays incoming from a prescribed range of a visual field onto the pickup element are imaged, the lens system including a wide-angle lens system whose visual field angle in the horizontal direction is 120 degrees or more, and an anamorphic lens system whose anamorphic ratio is 1.5 or more.