John Allen Davis (born 6 August 1923) is a British paediatrician and the first professor of paediatrics at the University of Cambridge, later becoming emeritus.

Davis was most notable for major research contributions to newborn physiology, particularly to the understanding of apnoea in the neonatal period.

After working with the British Army in Germany, Davis started his career at St Mary's Hospital, London, specialising in paediatrics.

[3] Davis was married to Madeleine Vinicombe Davis née Ashlin (died 1991) who became an editor, and principal member of the Winnicott Publications Committee, established to edit Donald Winnicott papers, for posthumous publication.

As a senior lecturer and later reader at Hammersmith Hospital, Davis worked to improve and develop neonatal intensive care.