Sir Francis Avery Jones CBE FRCP MRCS (31 May 1910 – 30 April 1998) was a Welsh physician and gastroenterologist.
He was born in Briton Ferry, Carmarthenshire, Wales but educated at the Sir John Leman High School, Beccles, Suffolk and at St Bartholomew's Hospital Medical School, where he qualified in medicine in 1934.
As a house physician he became interested in gastroenterology and based his successful future clinical career on the treatment of stomach and bowel ulceration.
In 1940, he was appointed as Physician to the staff of the Central Middlesex Hospital, where he joined a group of specialist gastroenterologists, remaining in the post until 1974.
He had married twice, firstly in 1934 Dorothea Pfirter (died 1983) with whom he had one son and secondly in 1983 Joan Edmunds.