Abstract: A collapsible portable animal crate including a tray with a border formed of a pair of long edges with a pair of short edges extended therebetween; a pair of spaced opposed rectangular end walls each having a bottom edge, a top edge, and a pair of opposed side edges extended therebetween and with the bottom edge of each end wall hingeably coupled to one of the short edges of the tray; a pair of spaced opposed side walls each having a bottom edge, a top edge, and a pair of opposed side edges extended therebetween and with the bottom edge of each side wall hingeably coupled to one of the long edges of the tray; a top wall having a pair of short edges with a pair of long edges extended therebetween and with the long edges coupled to the top edges of the side walls, the side walls and end walls upwardly extended from the tray with the top wall positioned thereover to define a box-shaped expanded operable configuration and with the side walls, end walls, and top wall positionable in stacked juxtaposed relation wit