Hilarion Tumi Vendégou (born 4 September 1941, in Isle of Pines) is a French politician to the present high chief of the Isle of Pines, in New Caledonia, and the incumbent mayor the commune.
He was recognised as grand chef in 1974, but, due to a violent succession dispute with his relative Jean-Marie Vendégou, was not formally enthroned until later, on 7 July 1979.
He is also the incumbent mayor of the island commune, until 2014.