Thottakattu Sankunni Menon CSI (21 April 1820 - 1881), also spelt as Shungoony Menon, was an Indian civil servant and administrator who served as the Diwan of the Cochin kingdom from 1860 to 1879. His administration is recognized as a period of development. Sankunni Menon's brother T. Govinda Menon also served as Diwan from 1879 to 1889.