Abstract: A disposable litter box is defined by a foldable closed container and includes a supply of litter. The box is adapted to be unfolded into a unitary litter box having a continuous outer perimeter of even height for defining an open topped litter box for use by pets and the like. After use is completed, the box may be refolded to confine the soiled litter, which may then be readily disposed. Visual indicators are provided to facilitate closing the box.