Oliver Louis Zangwill FRS (29 October 1913 – 12 October 1987) was an influential British neuropsychologist.
He was Professor of Experimental Psychology, University of Cambridge, 1952–81, and then Professor Emeritus.
His father was author Israel Zangwill; his mother was author Edith Ayrton, whose parents were physicist William Edward Ayrton and physician Matilda Chaplin.
He was elected a Fellow of the Royal Society in 1977.