An expandable animal crate that expands and retracts in order to receive various sized animals therein. The expandable animal crate includes a first enclosing member adjustably disposed within a second enclosing member, wherein each enclosing member includes a base, one or more sidewalls, an open sidewall, and a top wall. The first enclosing member can be slid from the second enclosing member, thereby allowing the animal crate to be expanded as needed. A sliding mechanism having one or more tracks disposed on the first enclosing member engages one or more rollers disposed on the second enclosing member in order to allow the crate to easily expand and retract. The animal crate further includes a plurality of casters disposed on the base of the crate and a plurality of handles disposed on the sidewalls thereof, which can be utilized to make the crate easier to transport.