Walter Hamilton Hylton Jessop FRCS (1852 – 16 February 1917) was a Hunterian Professor of comparative anatomy and physiology (1887–88), Ophthalmic Surgeon (to the Western General Dispensary, the Foundling Hospital and to the Children's Hospital at Paddington Green), Senior Ophthalmic Surgeon to St Bartholomew's Hospital (1901), President of the Ophthalmological Society of the United Kingdom (1915–17) and someone who "made a unique position for himself in the ophthalmological world and was probably the best known of English ophthalmic surgeons to his brethren on the Continent of Europe.

He was educated at Bedford Modern School and Gonville and Caius College, Cambridge (Matric.

He was made Senior Ophthalmic Surgeon at St Bartholomew's Hospital in 1901.

[2] Jessop was President of the Ophthalmological Society of the United Kingdom between 1915 and 1917, and made exhaustive research on the action of cocaine on the eye.

According to his obituary, he 'made a unique position for himself in the ophthalmological world and was probably the best known of English ophthalmic surgeons to his brethren on the Continent of Europe'.