Abstract: A sanitary pet litter container comprises a carton of sheet material which may be folded into a wedge-shaped configuration for storage or disposal or which may be opened to receive pets. The carton has a bottom and opposing end walls that are foldable inwardly toward each other on mutually parallel end fold lines which are spaced from and parallel to the bottom. Two opposing side walls are joined to the end walls at four corners. Each side wall has a central portion which is foldable inwardly toward the other side wall central portion on a lateral side fold line parallel to the other lateral side fold line but not parallel to the bottom. Further, each side wall has two wing portions each of which is foldable outwardly against the central portion on one fold line corresponding to one corner and on an acute side fold line. Each of these acute side fold lines originates at the intersection of the one corner with a lateral side fold line and bisects the angle defined by the intersection.