Abstract: A disposable feline litter box includes a tray prefilled with litter and including a permanently affixed upwardly extendable enclosure. An end face of the enclosure includes a hinged door flap which allows a feline to enter and exit the enclosure by pushing the flap in the appropriate direction. The various components of the litter box are made of bio-degradable materials. The litter box is initially provided in a collapsed configuration to allow for storage and transportation and is returned to the collapsed configuration for disposal.