Sir Herbert Lightfoot Eason CB CMG MS (15 July 1874 – 2 November 1949)) was an ophthalmic surgeon and Superintendent at Guy's Hospital, London, President of the General Medical Council, Vice Chancellor from 1935–1937 (and later Principal) of the University of London. He was knighted in 1943.
He was educated at University College, London and Guy's Hospital, London.
During the First World War he was Lieutenant colonel in the RAMC and Consulting Ophthalmic Surgeon to Forces in the Mediterranean and Egypt from 1915–19.
He married first in 1908, Ierne Bingham (d 1917), the eldest daughter of 5th Baron Clanmorris and they had a daughter. He married, second, 1920, Margaret Wallace, of Quidenham, Attleborough, Norfolk and they had two daughters.