Princess Ingeborg of Denmark (Ingeborg Charlotte Caroline Frederikke Louise; 2 August 1878 – 12 March 1958), was a Princess of Sweden by marriage to Prince Carl, Duke of Västergötland.
Princess Ingeborg was a daughter of Frederick VIII of Denmark and Louise of Sweden, she grew up in Copenhagen as a Danish princess. In 1897, she was married to her mother's first cousin Prince Carl of Sweden, Duke of Västergötland, and spent the rest of her of life in Sweden as a member of the Swedish royal family.
Her marriage produced four children, among whom were Märtha, Crown Princess of Norway and Astrid, Queen of the Belgians; she is the maternal grandmother of Kings Harald V of Norway, Baudouin and Albert II of Belgium, the matrilineal great-grandmother of Henri, Grand Duke of Luxembourg, the paternal grand-aunt of Queens Margrethe II of Denmark and Anne-Marie of Greece, as well as the great-grand-aunt by marriage of Carl XVI Gustaf of Sweden.