Robert Martin Stuart Smellie FRSE FIB (1927–1988) was a 20th-century Scottish biochemist and first Cathcart Professor of Biochemistry at the University of Glasgow.
He was born in Rothesay on 1 April 1927, the son of Rev William Thomas Smellie, the local minister, and his wife, Jean Craig.
He graduated B.Sc from the University of St Andrews in 1947 but was then asked to serve two years National Service.
During this period he was commissioned into the Royal Scots Fusiliers and with the Chemical Defence Establishment at Porton Down, where he worked on nerve gases.
His proposers were James Norman Davidson, Robert Garry, Hamish Munro and Michael Stoker.