Sir Humphry Davy Rolleston, 1st Baronet, GCVO, KCB (21 June 1862 – 23 September 1944) was a prominent English physician.

After clinical training at St Bartholomew's Hospital, London he qualified MB (Cambridge) in 1888 and MD in 1892.

[2] This period, however, was interrupted by his service during the Second Boer War, where he served with the Imperial Yeomanry Hospital, Pretoria.

From 1923[5] to 1932[6] he was Physician-in-Ordinary to King George V. He was made a Knight Commander of the Order of the Bath in 1918,[7] created a baronet, of Upper Brook Street in the parish of Saint George, Hanover Square, in the County of London, in June 1925[8] and made a Knight Grand Cross of the Royal Victorian Order (GCVO) in 1929.

[10] In 1925, on the death of Thomas Clifford Allbutt, the Regius Professor of Physic (Cambridge), Rolleston was appointed as his successor, but under a newly imposed age-limit he retired from that position in 1932.