Second World War Admiral Sir Louis Henry Keppel Hamilton KCB, DSO & Bar (31 December 1890 – 27 June 1957) was a senior Royal Navy officer who was Flag Officer in Malta (1943–1945) and later served as First Naval Member and Chief of Naval Staff of the Royal Australian Navy.

[1] His paternal grandfather, Captain Henry George Hamilton (1808–1879), was also a Royal Navy officer, while his great grandfather, William Richard Hamilton (1777–1859), was an Under-Secretary at the Foreign Office, British Minister to the Kingdom of the Two Sicilies, and an archaeologist.

[4] During the First World War, Hamilton saw active service in the West Africa Campaign, on the Niger River and in the German colony of Kamerun.

He commanded the Niger river flotilla which drove the Germans out of Dehane in December 1914, then led a party from the coast which transported a naval 12-pounder gun taken out of HMS Challenger on an epic journey of 640 miles along the Niger and Benue rivers, then sixty miles overland, to assist Brigadier-General Cunliffe in the taking of Garoua from a German garrison.

[13] Hamilton died at King Edward VII's Hospital for Officers on 22 June 1957, when his home address was 64, Pont Street, London.