Supernumerary kidney (SNK) is a rare congenital anomaly with fewer than 100 cases reported in the English literature. The majority of these were unilateral and only five bilateral cases have been reported. We report an infant with six kidneys, incidentally diagnosed at ultrasonographic imaging after presenting with an anterior lower chest wall abscess. Confirmation of the diagnosis was confirmed by excretory urography. To our knowledge, this is the highest number of SNK reported.