John Buckley Bradbury (27 February 1841 – 4 June 1930) was a medical doctor and Downing Professor of Medicine.

He was born in Saddleworth in Yorkshire the eldest son of John Bradbury a merchant and manufacturer.

From 1866 to 1876 he was a lecturer in Comparative Anatomy at Downing College in Cambridge.

[3] During the First World War he served as a lieutenant-colonel in the Royal Army Medical Corps at the Eastern General Hospital.

He is buried in the Parish of the Ascension Burial Ground in Cambridge, with his second wife Jane Gwatkin.