John Robert Philip AO FAA FRS (18 January 1927, Ballarat – 26 June 1999, Amsterdam) was an Australian soil physicist and hydrologist, internationally recognised for his contributions to the understanding of movement of water, energy and gases.
While he never performed his own experimental work, he was recognised for his skills in mathematics that could be used to explain physical processes and solve real world problems.
His poetry appears in anthologies edited by Judith Wright and in The Oxford Book of Australian Verse.
The major and most recognised area of Philip's research was his work on the theory of infiltration.
According to Philip, this is "...a review which gives a concentrated, connected account of a program of work reported in some 30 papers over the period 1954–1968.