In this paper, the interfacial adhesion between metal matrix and carbon nanotubes (CNTs) is determined in various metal/CNT nanocomposites by several models. The models apply the experimental data to calculate the interfacial parameters. A good correlation is acquired between theoretical and experimental results which validates the current analysis. The calculated parameters reveal the formation of a perfect adhesion at the interface between the metal matrix and CNT in all reported samples. In addition, the calculations are compared with similar results for polymer nanocomposites which show a stronger adhesion at metal-CNT interface in comparison to polymer-filler interfacial adhesion in polymer nanocomposites.