This animal toilet has a longitudinal direction, a horizontal direction and a vertical direction that are perpendicular to each another. The animal toilet comprises: an upper container which has multiple holes through which urine passes downwards； a lower container which is arranged below the upper container and which has an insertion port formed in the front surface in the longitudinal direction； a tray which is received into and housed in the lower container from the insertion port so as to be capable of being drawn out in the forward direction； and an absorbent sheet which is mounted on the bottom surface of the tray and which catches and absorbs the urine falling downwards through the holes in the upper container. In order to partition off the region where the absorbent sheet is mounted, the tray comprises a pair of horizontal walls which, on both sides in the longitudinal direction, extend in the horizontal direction while rising upwards from the bottom surface, and a pair of longitudinal walls which, on both sides in the horizontal direction, extend along the longitudinal direction while rising upwards from the bottom surface. In at least one of the four corners of the mounting region, at the end of the horizontal wall in the horizontal direction, a horizontal wall displaced portion is formed where the horizontal wall is displaced outwards in the longitudinal direction, and at the end of the longitudinal wall in the longitudinal direction, a longitudinal wall displaced portion is formed where the longitudinal wall is displaced outwards in the horizontal direction.一種動物用便器，其具有互相正交的縱方向與橫方向與上下方向。具備：上容器，其設有供尿通過至下方的複數個孔；下容器，其配置在前述上容器的下方，且於前述縱方向的前面形成有插入口；托盤，其可從前方抽出地從前述插入口收容於前述下容器內；以及吸收性薄片，係被載置於前述托盤的底面，且將從前述上容器的前述孔所落下的前述尿予以承接並吸收。前述托盤，為了區劃前述吸收性薄片的載置區域，具有：在前述縱方向的兩側從前述底面往上方立起且沿著前述橫方向設置之一對的橫壁、以及在前述橫方向的兩側從前述底面往上方立起且沿著前述縱方向設置之一對的縱壁。對應於前述載置區域之四角之角部之中的至少一個角部，於前述橫壁之前述橫方向的端部，形成有使前述橫壁朝前述縱方向之外側變位的橫壁變位部，且於前述縱壁之前述縱方向的端部，形成有使前述縱壁朝前述橫方向之外側變位的縱壁變位部。
