SupercapacitorsSupercapacitors receivedGraphene aMathan Kumar P lotRajagopal Peri ofMohana Selvi T attentionMuthuraaman B among energy storage systems due to their high power, fast charge and discharge rate, long cyclic stability, and environmental-friendly. Till now researchers have been focusing on developing novel materials to enhance the supercapacitor performance. Transition metal oxides are one among the many electrode materials showing excellent supercapacitor performance due to their unique properties such as changeable valence and intercalation of electrons and ions into the lattice of the metallic compounds. However, the metal oxide-based electrodes lag in electronic conductivity at the electrode–electrolyte interface, which impedes its applications. Over a decade, the hybridization of metal oxides with graphene became of great interest due to its peculiar properties of graphene. Moreover, graphene enhances conductivity and induces synergistic effects that result in promising supercapacitor performances. In this section, a comprehensive review of various metal oxide-graphene hybrids and their supercapacitor performances was discussed. To summarize the discussions, the specific capacitance, current density, preparation methods, and cyclic stability of metal oxide-graphene hybrids were represented in the respective tables.