Graham Dockray is a physiologist who is distinguished for his work on regulatory peptides in the gut and brain. These include hormones that when bound to various receptors lead to effects such as the secretion of digestive juices. His work has led to an improved level of understanding of the action of hormones in the digestive system and brain.

Throughout his research, Graham identified and characterised these peptides. He worked mainly with members of the gastrin and cholecystokinin family — hormones known to induce stomach and pancreas secretion, to control gastrointestinal motility and to influence feeding behaviour. His work has identified new mechanisms of action of these peptides involving signalling between the gut and brain.

Graham is Emeritus Professor of Physiology at the University of Liverpool, where he previously held positions as Head of the Department of Physiology and Deputy Vice-Chancellor. He has received several prestigious accolades throughout his career, including the 2005 Annual Review Lecture of the Physiological Society and the 2007 Sir Arthur Hurst Lecture at the British Society of Gastroenterology.