Abstract: A reusable and disposable dog diaper for removable emplacement and securement circumferentially about a dog's rear torso and inguinal region. By combining a waterproof (or water-resistant) lower body sheet, a highly absorbent material and a fastener that can be attached, detached and reattached many times without damaging the fastener or the diaper, the diaper of the present invention achieves the desirable goals of being both reusable and disposable. The diaper is easy to mount on the dog and easy to remove.