Colin Espie PhD, DSc, FRSM, FBPsS (born 1957) is a Scottish professor of Sleep Medicine in the Nuffield Department of Clinical Neuroscience at the University of Oxford and Fellow of Somerville College. He is closely involved with the development of the Sleep & Circadian Neuroscience Institute (SCNi). His particular areas of research expertise are in the assessment and treatment of sleep disorders, most particularly the management of insomnia using Cognitive Behavioral Therapy, and in studies on the aetiology and pathophysiology of insomnia.