Calne enjoyed drawing and painting from an early age. At school he was taught and encouraged by an art teacher Francis Russell Flint, son of the Scottish artist
William Russell Flint. As a medical student in London he would regularly visit art galleries to copy the works of great masters. In 1988 he performed a liver transplant on the Scottish painter
John Bellany, who began to paint self-portraits while still in intensive care and had completed 60 during his hospital stay. Bellany gave Calne painting lessons and the two became friends, painting portraits of each other. One of his portraits of Bellany was exhibited by the Royal Academy. Calne went on to paint some transplant patients, believing that it brought closeness and humanity to the surgeon-patient relationship, especially with children. An exhibition of his paintings entitled The Gift of Life was displayed at the Barbican in 1991. Other exhibitions of his artwork have intended to promote awareness of transplantation. File:Gertrude Elion. Oil painting by Sir Roy Calne, 1990. Wellcome L0024105.jpg|
Gertrude Elion. Oil painting by Sir Roy Calne, 1990. File:An empty abdomen during a six-organ transplant. Watercolour Wellcome L0024193.jpg|An empty abdomen during a six-organ transplant. Watercolour by Sir Roy Calne, 1994. ==Awards and honours==