We show that topologically crystalline regions in computer models of amorphous materials can be identified by examining the Schläfli clusterassociated with each atom. The Schläfli clustercontains those atoms that define the Schläflicircuit symbol. Different crystalline topologies that have the same Schläflicircuit symbol may be distinguished by considering the number of atoms in the Schläfli cluster. The diameter of the cubic diamond Schläfli clusterin Ge is ∼0.9 nm, which is typical of the shorter length scales associated with medium range order in amorphous materials. Regions of connected identical Schläfli clusterscan be readily identified in models and their combined size provides an intrinsic length scale for describing the medium range order.