A toilet for an animal having an up-down direction includes an upper container including a bottom part in which a plurality of holes that penetrate in the up-down direction are formed, and a lower container provided below the upper container. An outer periphery of each of the holes being surrounded with cross ribs along a direction intersecting with the up-down direction and longitudinal ribs along a direction intersecting with the up-down direction and the cross ribs. An uppermost part of the longitudinal ribs is higher than an uppermost part of the cross ribs. A part of the cross ribs connected to the longitudinal ribs being provided with an upper-side inclined surface inclined obliquely downward from the longitudinal ribs.