Peter John Grubb (born 9 August 1935 in Ilford, London) is a British ecologist and emeritus professor of botany at Cambridge University.
He attended Royal Liberty School and then Magdalene College, Cambridge where he received his BA in 1957, his PhD in 1962, and his ScD in 1995.
[1] He joined the staff of Magdalene College, later becoming a full professor (retired in 2001).
His early work was mentored by E. J. H. Corner and A. S. Watt, and especially influenced by the latter.
[2] Grubb worked on diverse botanical and ecological subjects, from physiology to biomes and from chalk grassland to tropical rain forest.