Martin John Elliott (born 8 March 1951) is a British surgeon. He is presently (appointed 2022) Provost of Gresham College, taking over from Simon Thurley. Elliott was 37th Professor of Physic at Gresham College from 2014 to 2018, where he is also Emeritus Professor and Fellow. He delivered a series of free public lectures on The Heart of the Matter, "to explore [...] the challenging medical, ethical, financial and political issues of our time." He is Emeritus Professor of Cardiothoracic Surgery at University College London, a post to which he was appointed in 2004.