Rosslyn Wemyss, 1st Baron Wester Wemyss

Admiral of the Fleet The Right Honourable The Lord Wester Wemyss
Lord Wester Wemyss by William Orpen
Born	(1864-04-12)12 April 1864 London, United Kingdom
Died	24 May 1933(1933-05-24) (aged 69) Cannes, France
Allegiance	United Kingdom
Service/branch	Royal Navy
Years of service	1877–1919
Rank	Admiral of the Fleet
Commands held	First Sea Lord East Indies & Egyptian Squadron 12th Cruiser Squadron 2nd Battle Squadron HMS Implacable HMS Suffolk
Battles/wars	Second Boer War First World War
Awards	Knight Grand Cross of the Order of the Bath Companion of the Order of St Michael and St George Member of the Royal Victorian Order Grand Cross of the Legion of Honour (France) Croix de guerre (France) Grand Cross of the Order of the Crown (Romania) Navy Distinguished Service Medal (United States)

Admiral of the Fleet Rosslyn Erskine Wemyss, 1st Baron Wester Wemyss, GCB, CMG, MVO (12 April 1864 – 24 May 1933), known as Sir Rosslyn Wemyss between 1916 and 1919, was a Royal Navy officer. During the First World War he served as commander of the 12th Cruiser Squadron and then as Governor of Moudros before leading the British landings at Cape Helles and at Suvla Bay during the Gallipoli campaign. He went on to be Commander of the East Indies & Egyptian Squadron in January 1916 and then First Sea Lord in December 1917, in which role he encouraged Admiral Roger Keyes, Commander of the Dover Patrol, to undertake more vigorous operations in the Channel, ultimately leading to the launch of the Zeebrugge Raid in April 1918.