Carl Gustaf Oscar Fredrik Christian, Prince Bernadotte (10 January 1911 – 27 June 2003), originally Prince Carl, Duke of Östergötland, was the youngest child and only son of Prince Carl of Sweden and Princess Ingeborg of Denmark. To distinguish himself from his father, he was widely known as Carl Junior. He was the brother of Princess Margaretha of Sweden, Queen Astrid of Belgium and Crown Princess Märtha of Norway.

When Prince Carl married Countess Elsa von Rosen (1904–1991), on 6 July 1937 at Kvillinge, Sweden, he had to relinquish his succession rights and his royal titles. She was the daughter of one Count von Rosen and ex-wife of another Count von Rosen. Bernadotte's brother-in-law, King Leopold III of Belgium, conferred upon him the title of Prince Bernadotte in the Belgian nobility on the same date, with the right to a comital title for his male-line descendants. He had one daughter, called Countess Madeleine Bernadotte (born , 8 October 1938), and divorced his wife in 1951.

He married secondly Ann Margareta Larsson (1921–1975) at Danderyd, Sweden, on 1 November 1954. They divorced in 1961 without issue. His third and final marriage took place at the Embassy of Sweden in Rabat, Morocco, on 8 June 1978, when he married Kristine Rivelsrud.

Bernadotte died at the age of 92 on 27 June 2003 in Málaga, Spain. He was the last surviving grandchild of Oscar II of Sweden and the last surviving great-grandchild of Oscar I of Sweden. His widow, Princess Kristine Bernadotte, died at their home at Villa Capricornio in Benalmadena, Spain, on 4 November 2014 at the age of 82, without issue.

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