In this study, laser additive manufacturing was applied to the fabrication of metal matrix syntactic foams. This was done with the intent of utilizing the fast cooling rates and limited kinetic energy input of additive manufacturing to reduce two issues commonly associated with the process of syntactic foams: microsphere flotation in the melt and microsphere fracture during processing. Challenges to this process include microsphere segregation during powder mixing and processing which decreases homogeneity and during the layer-by- layer microstructure of this additive manufacturing process which hinders some mechanical properties. A Fe-based and an Al-based metal matrix with glass microspheres were characterized in this study. Characterization methods included Vickers hardness and microstructural analysis.