Heavy metal contamination of water is a serious threat to the ecosystem. Many industries such as electroplating, metal plating, mining operation, and tanneries release wastewaters containing heavy metals into the environment. The objective of the study was to investigate the efficiency of activated carbon of coffee husk for the removal of heavy metals (chromium, zinc and nickel) from electroplating wastewater. Activated carbon was prepared from coffee husk with chemical process. Its surface chemistry was characterized for different physical and chemical properties such as bulk density, particle density, particle size, porosity, surface area, moisture content, ash content, pore volume, volatile matter, content of carbon, content of nitrogen, point of zero charge, fourier transform infrared spectroscopy, morphologies. The concentration of H+ ion and electrical conductivity were also determined. Sorption studies were conducted in a batch system. The extent of adsorption was studied as a function of pH, contact time, adsorbent dose, and initial adsorbed concentration of optimum results were found to be 120 minutes for Cr, Zn and 90minutes for Ni. 40mg/l, 20g/L and 150rpm for contact time, initial concentration, pH, adsorbent dose and stirring speed respectively at the optimal condition. The sorption efficiency after at equilibrium the adsorption of chromium was found to be 99.65%, nickel 99.84% and Zinc 96.24%. Even though equilibrium was not attained in the case of Cr(III)ions, sorption efficiency ranged from 64.15 to 83.58%.The Sorption performance was improved as metal ions concentrations lowered. The experimental sorption equilibrium data were fitted by both Langmuir and Freundlich sorption models, with Langmuir providing the best fit for Ni(R2=0.987) and Freundlich sorption isotherm model best fit for Cr(R2= 0.987) and Zn (R2=0.965. The sorption kinetics was better described by the pseudo-second-order model for Ni, Cr and Zn( R2 = 0.999),( R2= 0.999) and(R2=1) respectively. The highest adsorption capacity occurred at distinct pH=7 values for each metal ion. Generally the study showed that the activated coffee husk carbon can be used as a good adsorbent for the removal of chromium, zinc and nickel from electroplating wastewater.rnKey words: Adsorption isotherms, Adsorption kinetics, activated carbon, coffee husk, electroplating wastewater Heavy metals