Sir David Ernest Thomas Floyd Ewin OBE, LVO (17 February 1911 – 11 November 2003) was a British administrator and Trustee of St Paul's Cathedral.
[1] Ewin served as Registrar and Receiver of St Paul's from 1944 to 1978, when he formally retired, but continued to work for the cathedral as a volunteer.
He was appointed an Officer of the Order of the British Empire later in the year and was knighted in the 1974 Birthday Honours.
[2] In the 1990s, Ewin was a Deputy in the Castle Baynard ward of the City of London Corporation.
His obituary in The Daily Telegraph says of him that he "gave virtually the whole of his working life – and many years of his retirement – to the service of St Paul's Cathedral.