List of Royal Navy flag officers who died during the First World War

During the First World War the Royal Navy senior command consisted of flag officers^{[Note 1]} of the ranks (in ascending order of seniority): rear-admiral, vice-admiral, admiral, and admiral of the fleet. Ranks could also be held in an honorary capacity, often by foreign royalty. In August 1914 there were 18 serving rear-admirals, 22 vice-admirals, 12 admirals (plus 2 honorary appointments), and 3 admirals of the fleet (plus the monarch George V and 3 honorary appointments).^{[Note 2][4]}

In 1914 Royal Navy practice was for rear-admirals to lead divisions of 2-4 battleships, they also commanded squadrons of battlecruisers, with squadrons of smaller vessels often being commanded by commodores.^{[Note 3]} These units were grouped into regional commands whose commander's rank varied depending on the importance of the region, but was usually a rear-admiral or vice-admiral. More senior officers held command of large sea-going forces such as the Grand Fleet.^[7] Many admirals also held staff positions on land rather than sea-going commands.^[4] The rank of admiral of the fleet was held for life and was granted to the most senior serving naval officers or as an honorary rank for prior service.^[3]

Until 1957 the Royal Navy maintained separate branches for its officers, distinguishing the military (executive) roles from others, such as engineering, which were considered "civil" roles. The Royal Navy's engineers had previously had unique rank titles but since reforms in 1903 engineer branch officers had held the same ranks as their executive colleagues, though prefaced with "engineer".^[8][9]

Royal Navy admirals served on land and at sea during the war. In British wartime prime minister David Lloyd George's 1933 memoirs he lauds the admirals for serving at sea and sharing the risk of death with their men. He contrasts this with the service of British generals in the war whom he generalises as châteaux generals who did not visit the battlefield.^[10] This myth is unfair on the generals who suffered heavy casualties during the war, with many killed in action.^[11] Three British admirals were killed in action during the war compared to at least 78 British generals with the rate of death proportionately greater in the army.^[12][10] The admirals killed were Rear-Admiral Sir Christopher Cradock at the Battle of Coronel in 1914 and Rear-Admirals Sir Horace Hood and Sir Robert Arbuthnot, both killed at the Battle of Jutland in 1916.^[10]

The colonial navies (the Royal Australian Navy and Royal Canadian Navy) served in a combat capacity throughout the war, generally under the direction of the British Admiralty.^[13] The Royal Indian Marine began the war as a non-combatant force, though during the course of the conflict its vessels were armed and served on patrol and transport duties.^[14][15] The only non Royal Navy admiral of the British Empire to die during the war was the Royal Australian Navy's director of naval auxiliary services, Rear-Admiral Frederick Tickell.^[16]

This list includes all officers noted by the Commonwealth War Graves Commission (CWGC) as holding flag officer rank and who died between the British entry into the war on 4 August 1914 and the armistice of 11 November 1918. A large number of retired naval officers, including many admirals, volunteered for service during the war. Many accepted commissions at lower ranks in the Royal Naval Reserve (RNR) and served in yachts and other small craft on coastal patrols. The CWGC list these officers at their full rank, even where they died whilst serving in the lower RNR rank.^[17]

Image	Rank	Name	Command	Date of Death	Place of Death	Cause of Death	Ref.
	Engineer Rear-Admiral	William Thomas Hocken	Staff of the Engineer-in-Chief of the Fleet	28 August 1914	London, United Kingdom		[18][19]
	Rear-Admiral	Sir Christopher Cradock	4th Cruiser Squadron	1 November 1914	HMS Good Hope, Coronel	Killed in action	[20][21]
	Rear-Admiral	William John Grogan	HMY Sapphire II	14 March 1915	Portsmouth, United Kingdom	Drowned	[22][23]
	Rear-Admiral	Sir Robert Arbuthnot	1st Cruiser Squadron	31 May 1916	HMS Defence, Jutland	Killed in action	[24][25]
	Rear-Admiral	Sir Horace Hood	3rd Battlecruiser Squadron	31 May 1916	HMS Invincible, Jutland	Killed in action	[26][27]
	Vice-Admiral	Sir George Warrender	Formerly Commander-in-Chief, Plymouth	8 January 1917	London, United Kingdom	Illness	[28][29][30]
	Admiral	Sir Frederick Hamilton	Commander-in-Chief, Rosyth	4 October 1917	Rosyth, United Kingdom	Illness	[31][32]
	Vice-Admiral	Frank Hannam Henderson	On special service, HMS President	26 June 1918	Royal Hospital Haslar, United Kingdom	Operation	[33][34]
	Engineer Rear-Admiral	Francis Henry Lister	Haulbowline Dockyard staff	20 August 1918	Queenstown, United Kingdom	Illness	[35][36]
	Engineer Rear-Admiral	Richard James Tench		1 November 1918	Waterlooville, United Kingdom		[37][38]

The First World War is usually held to have ended with the armistice of 11 November 1918 though the peace treaties officially ending the war took some years to agree and sign. Under the Termination of the Present War (Definition) Act 1918 the end of the war was defined for general purposes by the British parliament as 31 August 1921. This is the same date that the Commonwealth War Graves Commission uses for its casualty records. The following flag officers died between the armistice and 31 August 1921.^[39]

Image	Rank	Name	Command	Date of Death	Place of Death	Cause of Death	Ref.
	Admiral	Frank Finnis	Retired 1909; served from 1915 as a captain in the Royal Naval Reserve	17 November 1918	London, United Kingdom	Illness	[40][41][42]
	Admiral	Herbert Lyon	Retired 1913; served from 1914 as a commodore in the Royal Naval Reserve commanding patrols at Malta	15 March 1919	Bighi Hospital, Malta	Illness	[43][44]
	Vice-Admiral	Sir Trevylyan Napier	Commander-in-Chief, America and West Indies Station	30 July 1920	Hamilton, Bermuda	Illness	[45][46]
	Vice-Admiral	Gerald Marescaux	Retired 1915; served from 1914 as a colonel in the British Army. Last position commanding British Troops, Paris.	3 September 1920	Royal Naval Hospital Chatham, United Kingdom	Wounds received	[47][48]
	Admiral of the Fleet	Sir George Callaghan	Formerly Commander-in-Chief, The Nore	23 November 1920	London, United Kingdom	Illness	[49][50][51]
	Rear-Admiral	Henry Montagu Doughty	Formerly 1st Battle Squadron	1 May 1921	Haslar Naval Hospital, United Kingdom		[52][53]

• List of generals of the British Empire who died during the First World War