Faddey Faddeyevich Bellingshausen or Fabian Gottlieb Benjamin von Bellingshausen (20 September [O.S. 9 September] 1778 – 25 January [O.S. 13 January] 1852) was a Russian cartographer, explorer, and naval officer of Baltic German descent, who attained the rank of admiral. He participated in the first Russian circumnavigation of the globe, and subsequently became a leader of another circumnavigation expedition that discovered the continent of Antarctica. Like Otto von Kotzebue and Adam Johann von Krusenstern, Bellingshausen belonged to a cohort of prominent Baltic German navigators which helped Russia launch its naval expeditions.
Bellingshausen was born on the island of Saaremaa (Ösel), to the Bellingshausen family.