Mark D. Hill is John P. Morgridge Professor and Gene M. Amdahl Professor of Computer Sciences at the University of Wisconsin-Madison, where he also has a courtesy appointment in Electrical and Computer Engineering. His research interests include parallel-computer system design, memory system design, and computer simulation. He co-leads the Wisconsin Multifacet project with David Wood. He is a fellow of IEEE and the ACM. He serves as Chair of the Computer Community Consortium (2018-19) and served as Wisconsin Computer Sciences Department Chair 2014-2017. Hill has a Ph.D. in computer science from the University of California, Berkeley.