F R G Heaf

Professor Frederick Roland George Heaf CMG FRCP (21 June 1894 – 4 February 1973), until 1916 Fritz Rudolf Georg Hief, was a British physician.

He was born in Desborough, Northamptonshire, England, of German ancestry. He attended Sidney Sussex College, Cambridge and St Thomas' Hospital as a medical student, where his studies were interrupted by the First World War. He was recognised as a conscientious objector in 1916, and briefly served in the Friends' Ambulance Unit, but was then allowed to complete his medical studies. He followed a career in Public health and became a Professor at the University of Wales in 1949. His lifelong interest was in tuberculosis, and the test formerly used in the UK for immunity to TB is named for him.