A portable toilet litter bowl for cats that fits human toilets of all conventional sizes, may be alternately placed in a functional position on flat surfaces, that provides an uncomplicated, space-saving, secure, environmentally friendly cat toilet apparatus. The litter bowl is comprised of a plastic injection molded unitized structure including a flat u-shaped horizontal platform member that provides a comfortable area on which cats may jump, stand and rest their front paws, a central basin extending downwardly from said platform into a conventional human toilet bowl in which flushable cat litter is placed and cats urinate and defecate, a basin opening with a sliding cover system that provides a simple, sanitary method for expelling soiled litter and containing clean litter, a semi-oval shaped internal wall extending upwardly on the back and sides of said platform to prevent cat litter from spilling onto the floor, a semi-oval shaped external wall/base extending downwardly from the top of said internal wall
