A toilet for an animal (1) having an up-down direction includes an upper container (2) including a bottom part (20) in which a plurality of holes (20a) that penetrate in the up-down direction are formed, and a lower container (3) provided below the upper container (2). An outer periphery of each of the holes (20a) being surrounded with cross ribs (21) along a direction intersecting with the up-down direction and longitudinal ribs (22) along a direction intersecting with the up-down direction and the cross ribs (21). An uppermost part (22H) of the longitudinal ribs (22) is higher than an uppermost part (21 H) of the cross ribs (21). A part of the cross ribs (21) connected to the longitudinal ribs (22) being provided with an upper-side inclined surface (211a) inclined obliquely downward from the longitudinal ribs (22).