The problem of extracting interatomic pair potentials from diffraction data for metallic alloy glasses is discussed and examples are given using experimentally obtained structure factors. First, three transition metal-metalloid glasses are treated approximately, as pseudo single-component assemblies with encouraging preliminary results. A second analysis, using the correctpartialstructure factors for a Ni64B36glass, is found to be a more difficult case, which highlights the limitations of even the best current diffraction data for this purpose. The possible future extension of this work is discussed, in the context of the need for fundamental theories of metallic glass structures.