Admiral Sir George Nathaniel Broke-Middleton, 3rd Baronet CB (26 April 1812 – 14 January 1887) was a British Royal Navy officer.

Broke-Middleton was the second son of eleven children born to Sarah Louisa Middleton and Sir Philip Broke, 1st Baronet, a Royal Navy officer who served in the French Revolutionary and Napoleonic Wars and the War of 1812.

On 18 December 1845, he was promoted to the rank of captain, and in 1855 took command of HMS Gladiator, seeing active service in the Crimean War.

On 27 August 1853 at Ghent, Belgium, Broke married Albinia Maria (née Evans) Rushbrooke (1821–1905), daughter of Thomas Evans,[10] after she had been divorced by her husband, Maj. Robert Frederick Brownlow Rushbrooke, on the grounds of her adultery with Broke.

His Suffolk estates were inherited by a niece, Lady de Saumarez, formerly Jane Anne Broke, the daughter of his brother Capt.