Lanthanum ferrite decorated reduced graphene oxide (LaFeO3/rGO) nanocomposite is prepared by in-situ microwave irradiation method. The X-ray diffraction study reveals the single phase orthorhombic structure of LaFeO<inf>3</inf> nanoparticles and LaFeO<inf>3</inf>/rGO nanocomposites. The FTIR study reveals various vibrational modes and the characteristic D and G bands of the Raman spectrum confirms the formation of reduced graphene oxide. The SEM and HR-TEM images demonstrate that spherical LaFeO<inf>3</inf> particles are decorated on 2D graphene sheets. From the HR-TEM study, the average particle size of LaFeO<inf>3</inf> is estimated to be 23 nm. The synergistic effect of 3D LaFeO<inf>3</inf> nanoparticles and 2D graphene layers offers more active sites to achieve the enhanced electrochemical performance. The specific capacitance of LaFeO<inf>3</inf>/rGO composites is measured to be 170 Fg−1 at 10 mV s−1. The composite electrode has admirable cyclic stability, better Columbic efficiency and improved capacitance retention with great potential for supercapacitor applications. © 2021 Elsevier B.V., All rights reserved.