In this study, natural bentonite has been used as a highly efficient, and low-cost sorbent for the adsorptive removal of methylene blue (MB), crystal violet (CV), and fuchsine basic (FB) dyes from aqueous solutions. X-ray fluorescence (XRF), Thermogravimetry and differential thermal analyses (TG-DTA), X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) analyses for bentonite clay were performed. Results revealed that bentonite is an excellent sorbent for the elimination of these dyes with maximum adsorption capacities of 598.8, 929.7 and 875.2 mg g⁻¹ for MB, CV, and FB, respectively. In addition, thermodynamic results reflected that the adsorption process is a spontaneous, endothermic, and of chemisorption nature. While kinetic studies specified that the adsorption of these dyes is ruled by the film diffusion and pore diffusion mechanism. Moreover, simultaneous removal of these dyes from their binary and ternary mixtures was also examined. A Regeneration study demonstrated that, bentonite can be recycled several times with almost the same efficiency.