Admiral of the Fleet Sir Reginald Yorke Tyrwhitt, 1st Baronet, (; 10 May 1870 – 30 May 1951) was a Royal Navy officer.
During the First World War he served as commander of the Harwich Force.
He led a supporting naval force of 31 destroyers and two cruisers at the Battle of Heligoland Bight in August 1914, in which action the 1st Battlecruiser Squadron under Sir David Beatty sank three German cruisers and one German destroyer with minimal loss of allied warships.
Tyrwhitt also led the British naval forces during the Cuxhaven Raid in December 1914, when British seaplanes destroyed German Zeppelin airships and at the Battle of Dogger Bank in January 1915, in which action Tyrwhitt again supported Beatty's powerful battlecruiser squadron.
After the war, Tyrwhitt went on to be Senior Naval Officer, Gibraltar, commander of the 3rd Light Cruiser Squadron in the Mediterranean Fleet and then Commander-in-Chief, Coast of Scotland.
He also served as Commander-in-Chief, China during a period of disturbances and tension with the Nationalist Government.
His last appointment was as Commander-in-Chief, The Nore.
Author: Francis Dodd (1874-1949) Source: 'Admirals of the British Navy' by Francis Dodd. A collection of Admirals with sketch portrits and a brief biography. Published 1917. Available online at internet archive [1] Published by 'Country' life and George Newnes Ltd., London. License: PD US expired