Robert Jocelyn Walter Byrde (31 July 1922, Bournemouth – 8 May 2010, Wells, Somerset) was an English mycologist and phytopathologist.
He is known for his research, in collaboration with Anthony H. Fielding, on the role of pectolyic enzymes in physiological phytopathology.
He saw military action in support of heavy anti-aircraft artillery, attained the rank of captain, and served in India.
[1] In 1947 he returned to the University of Reading as a graduate student under the supervision of Raymond Henry Stoughton.
Within one year Byrde moved to Long Ashton Research Station, which was part of the University of Bristol.