Susan Allbritton Murphy (born April 16, 1958) is an American statistician. She is the H.E. Robbins Professor of Statistics & Professor of Psychiatry, at the University of Michigan. She won a 2013 MacArthur Fellowship. In 2015 she gave the Bradley Lecture at the University of Georgia.She is known for her work applying statistical methods to clinical trials of treatments for chronic and relapsing medical conditions.