Frayn was born at Mill Hill (then in Middlesex) to Thomas Allen Frayn, a deaf asbestos salesman from a working-class family of blacksmiths, locksmiths and servants, in which deafness was hereditary, and his wife Violet Alice (née Lawson). Violet was the daughter of a failed palliasse merchant; having studied as a violinist at the Royal Academy of Music, she worked as a shop assistant and occasional clothes model at Harrods. Frayn's sister would also later work at Harrods, as a children's hairdresser. He grew up in Ewell, Surrey, and was educated at Kingston Grammar School. Following two years of National Service, during which he learned Russian at the Joint Services School for Linguists, Frayn read Moral Sciences (Philosophy) at Emmanuel College, Cambridge, graduating in 1957. He then worked as a reporter and columnist for The Guardian and The Observer, where he established a reputation as a satirist and comic writer, and began publishing his plays and novels.