Cadmium chemistry is an important area of research from both an industrial and environmental point of view. This review surveys the structural determination of over six hundred complexes of cadmium. The coordination numbers observed range from two to eight with six occuring most frequently, and lower values mostly associated with carbon donor ligands. The most common donor atoms in the higher coordination number complexes are Ν, Ο and CI. A range of derivatives from dimers to polymers contain two or more cadmium atoms, however, there appears to be no evidence to suggest the existence of a direct Cd-Cd metal bond.