This animal litter box (1) has an inner space where an animal excretes bodily waste. The inner space is surrounded by at least a bottom surface (11b) that receives the waste and a wall part (21) rising vertically from the periphery of the bottom surface (11b). An absorbent body placement unit (13s) whereon is placed an absorbent body (200) for absorbing the waste is provided vertically below the inner space. The center position (CL13s) of the absorbent body placement unit (13s) is longitudinally offset from the center position (CL10) of the inner space.[課題] 提供一種可有效使用吸收體之動物用廁所。 [解決手段] 一種具備有:作為用以供動物排泄之空間之內部空間的動物用廁所(1),內部空間,係至少由:承接排泄物之底面(11b)、以及從上述底面(11b)之周圍朝高度方向立起的壁部(21)所圍住之空間,於高度方向上比上述內部空間更下方處,設置有:用以配置吸收上述排泄物之吸收體(200)的吸收體配置部(13s),於長邊方向,上述吸收體配置部(13s)的中央位置(CL13s),與上述內部空間的中央位置(CL10)是錯開的。