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A one-step thermo-chemical approach was employed to synthesize ZnFe2O4/rGO nanohybrids with increasing GO concentrations (0, 10, 20, and 30 wt. %). This approach was used to reduce GO while simultaneously synthesizing ZnFe2O4 nanoparticles and adhering them to rGO sheets. The nanohybrids were investigated using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and impedance analyzer. The XRD patterns confirmed the formation of a face-centered cubic single phase of ZnFe2O4/rGO nanohybrid and SEM images revealed the decoration of ZnFe2O4/rGO nanoparticles on rGO sheets. The dielectric properties improved as GO loadings increased. At 100 Hz, the dielectric constant and dielectric loss increased to 2.04 × 104 and 1.20 × 105 for ZnFe2O4/rGO nanohybrid with 30 wt. % of GO when compared to pure ZnFe2O4 of 4.23 × 102 and 1.92 × 103, respectively. The feasibility of this method implies that this nanohybrid can be used for charge storage devices. [ABSTRACT FROM AUTHOR]