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This work reports the effect of varying red mud and fixed E-glass fiber content on the corrosion behavior of Al6061 hybrid composites. The red mud content was varied from 3% to 12% in the step of 3% and E-glass fiber content was fixed to 2%. Both unreinforced Al6061 alloy and its hybrid composites were produced using stir casting process under identical processing conditions. The corrosion behavior of Al6061 alloy and its hybrid composites compared with its matrix in 3.5% NaCl using electrochemical potentiodynamic polarization test in accordance with ASTM G3 standard. The obtained result indicates the corrosion resistance of the hybrid composites with red mud and E-Glass fiber was higher than that of the Al6061 alloy. Microscopy analysis of corroded surfaces showed formation of Al(OH)3 protective layer which covered surface of the hybrid composites and resulted in low corrosion rate.