Admiral of the Fleet Sir William Henry May GCB GCVO DL (31 July 1849 – 7 October 1930) was a Royal Navy Officer.

May went on to higher command and served as Third Sea Lord and Controller of the Navy before becoming Commander-in-Chief, Atlantic Fleet.

[2] Promoted to sub-lieutenant on 29 March 1869, he joined the battleship HMS Hercules in the Channel Fleet and then transferred to the Royal Yacht HMY Victoria and Albert (1855) in June 1871.

[2] In the latter role he acted as chief of staff for the Diamond Jubilee Review of the Fleet at Spithead in June 1897 for which he was appointed a Member of the Royal Victorian Order later that year.

[1] He then became commanding officer of the gunnery school HMS Excellent later that year[2] and was appointed a naval aide-de-camp to the Queen on 7 May 1899.

[1] Promoted to full admiral on 5 November 1908,[12] he became Commander-in-Chief, Home Fleet, with his flag in the battleship HMS Dreadnought, in March 1909.

[14] He went on to be Commander-in-Chief, Plymouth in April 1911 and was advanced to Knight Grand Cross of the Order of the Bath on 19 June 1911.