The Tyrwhitt baronetcy, of Terschelling and of Oxford, was created in the Baronetage of the United Kingdom on 13 December 1919 for the naval commander Reginald Tyrwhitt.
He was a descendant of John Tyrwhitt, brother of the first Baronet of the 1808 creation.
In 1934 Tyrwhitt was promoted to Admiral of the Fleet.
[2] The second Baronet was an admiral in the Royal Navy and served as Second Sea Lord from 1959 to 1961.
[3] The heir apparent is the present holder's son Robert St John Hildyard Tyrwhitt (born 1987).