Abstract: A modular animal shelter is conveniently relocatable, inexpensive to construct, and sufficiently durable to house large animals for extended periods of time. The modular animal shelter may be formed using a plurality of prefabricated, discrete, detachably interconnected side panels to define at least a partial enclosure. Each side panel may comprise a plurality of rails supported by a plurality of substantially vertical posts transverse to the rails. The side panels may be supported in a vertical disposition through the interconnecting of the side panels, such that the side panels are self-supporting without being anchored to the ground. A covering for the modular animal shelter may be formed substantially of a foldable material, and preferably extends over the enclosure to shelter the enclosure. The covering is preferably detachably connected to the side panels. A plurality of support members may be detachably connected to the tops of two of the opposing side panels to support the covering.