Congo red is an asymmetrical azo dye. Its exhibited color is pH-dependent and as such it has been used in chemistry as a pH indicator. This compound was electrolyzed in an aqueous solution at Graphite Carbon Electrode (GCE). Under the experimental conditions used in this study, Congo red was found to undergo a one-electron, diffusion-controlled and totally irreversible oxidation reaction. Its pertinent electrochemical parameters such as the apparent redox potential, Eo', the half-wave potential, E1/2, the diffusion rate constant, D, the heterogeneous electron transfer rate constant, ks, and the current function were determined by cyclic voltammetric (CV) technique. These parameters were used in the determination of the reaction mechanism. The product formed after electrochemical oxidation was found to undergo dismutation reaction in accordance with literature observation.