In this paper, we have discussed various mass diffusivity determination techniques using interferometry. Since interferometry is an optical phenomenon, all of these methods are more suited for the case where the medium is either fully or partially transparent. Initially, the basic fundamental which forms the basis of diffusivity determination was discussed. It was followed by specific diffusivity determination techniques like phase-shifting interferometry, common path shearing interferometry, holographic interferometry, electronic speckle pattern interferometry, multiple-beam interferometry and Michaelson interferometry were discussed.