George Godolphin Osborne, 9th Duke of Leeds (11 August 1828 – 23 December 1895), was a British peer.

Born in Paris, France, he was the son of the 8th Duke of Leeds and his wife Harriet Emma Arundel née Stewart, illegitimate daughter of 1st Earl Granville.

From 1852 to 1861 he was a Captain in the revived North York Rifle Militia, at that time commanded by the 7th Duke of Leeds.

The couple were half first cousins and second cousins once removed at the same time, since their mothers were half-sisters through their father Granville Leveson-Gower, 1st Earl Granville, who had George's mother Harriet secretly with his lover Henrietta Ponsonby, Countess of Bessborough, before marrying her niece Harriet Leveson-Gower, Countess Granville, and having legitimate children, including Frances Georgiana's mother Susan, with her.

The Osbornes had nine children: The Leeds's owned property in west Cornwall and visited (probably for the first time) in May 1882.