Abstract: A disposable animal litter box having a substantially fluid-tight bottom container and a cover member supported by the container is provided. The bottom container is provided with a bottom panel, substantially parallel container end walls connected to opposite side edges of the bottom panels so as to be substantially normally disposed to the plane of the bottom panel, substantially parallel container side walls connected to the other two opposite edges of the bottom panel so as to be substantially normally disposed to the plane of the bottom panel and so as to extend in the same direction as the container end walls, and foldable corners interconnecting the end portions of the container end walls to the adjacently disposed end portions of the container side walls.