William Ian Miller (born March 30, 1946) is the Thomas G. Long Professor of Law at the University of Michigan. He is also Honorary Professor of History at the University of St. Andrews. His area of specialty is the sagas of medieval Iceland, but he also has written extensively on revenge and on various emotions, mostly self-attentional. He grew up in Green Bay, Wisconsin, received his BA from the University of Wisconsin in 1969; a Ph.D in English and a JD in law at Yale 1975, 1980.