Dr Christopher Riche Evans (29 May 1931 – 10 October 1979) was a British psychologist, computer scientist, and author.

Born in Aberdovey, he spent his childhood in Wales and was educated at Christ College, Brecon (1941–49). He spent two years in the RAF (1950–52),and worked as a science journalist and writer until 1957 when he began a B.A. course in Psychology at University College, London, graduating with honors in 1960.

After a summer fellowship at Duke University, where he first met his future American wife, Nancy Fullmer, he took up a Research Assistant post in the Physics Laboratory, University of Reading, working on eye movements under Professor R.W. Ditchburn. Upon receiving his PhD (the title of his thesis was “Pattern Perception and the Stabilised Retinal Image”), he went to the Division of Computer Science, National Physical Laboratory, Teddington in 1964, where he remained until his death of cancer in 1979. Survived by his wife and two children Christopher Samuel Evans and Victoria Evans-Theiler.