Joan Mary Fry (27 July 1862 – 25 November 1955) was an English Quaker campaigner for peace and social reform.
In 1919 she and other Friends travelled to the defeated Germany and organised food distribution networks as famine relief there.
She gave the 1910 Swarthmore Lecture, entitled The Communion of Life to the Quakers' "London Yearly Meeting".
When her sister-in-law Helen Coombe was placed permanently in a mental hospital, she helped her brother Roger with bringing up their children.
The Royal Mail's "Britons of Distinction" postage stamps - issued on 23 February 2012 - celebrated ten people from the world of science and technology, architecture, politics and the arts.