Mark Gillachrist Marlborough Pryor (25 February 1915 – 19 October 1970) was a British biologist,[1] who was Senior Tutor and Fellow of Trinity College, Cambridge.

[2] His paternal grandfather was Marlborough Robert Pryor, who was an amateur naturalist "well known in Cambridge scientific circles".

During the Second World War, Pryor worked at the Timber and Adhesives Division of the Royal Aircraft Establishment, RAE Farnborough, where he applied his entomological knowledge to the development of aircraft glue, alongside Norman de Bruyne.

He collaborated on papers with, amongst others, John Tileston Edsall,[8] Laurence Picken and Michael Swann[9] and A.R.

In 1967 Mark and Sophie Pryor were involved in a road traffic accident, in which she was relatively unharmed but which left him with brain damage in a persistent vegetative state for almost three years until his death, aged 51.