An animal toilet has a front-rear direction, a right-left direction and an up-down direction that intersect each other. The animal toilet is provided with an upper container that is provided with a plurality of holes through which urine passes below, a lower container that is positioned below the upper container and has formed an insert hole on a front face, and a tray that is housed from the insert hole into the lower container in a manner being allowed to be pulled out forward, and made to receive and store the urine that falls through the holes of the upper container. A front part of the tray is not protruding in front of the front face of the lower container when seen from the right-left direction. The front part of the tray has an exposed portion. An upside and a downside of the exposed portion are exposed to an outside space. An upper part and a lower part of the exposed portion are respectively provided with a geometrically deformed portion having a shape changed from a surrounding portion.
