Hyacinthe Yves Philippe Potentien, baron de Bougainville (December 26, 1781 – October 18, 1846) was a French naval officer. He was the son of Louis-Antoine de Bougainville.[1] He became Rear-Admiral on 1 May 1838. He circumnavigated the world between 1824 and 1826 aboard the ships Thétis and Espérance. In 1825, Hyacinthe de Bougainville led an unsuccessful embassy to Vietnam; that same year, he visited Port Jackson and Sydney where he set up a monument to La Pérouse and erected a grave for le Receveur in Botany Bay.