John Francis Godolphin Osborne, 11th Duke of Leeds (12 March 1901 – 26 July 1963) was a British peer.

He was the son of George Godolphin Osborne, 10th Duke of Leeds and Lady Katherine Frances Lambton.

[2] The Duke spent the rest of his life as a tax exile on the French Riviera, and on the island of Jersey at his mansion Melbourne House.

[3] Bibulous and self-centred, he had no interest in living up to his title, and dissipated much of the family's remaining wealth, although enough remained for his sole child Lady Camilla to inherit, in addition to an allowance, £1,000,000 (equivalent to £17,850,000 in 2023)[4] lump sum from the family trust in 1971.

[5] In 1961 he sold Francisco Goya's Portrait of the Duke of Wellington at auction for £140,000 (equivalent to £3,420,000 in 2023[4]).