Peter Stephen Popovich (November 27, 1920 - March 29, 1996) was an American lawyer, politician, and judge from Minnesota. He is the only person in the state's history to serve as both Chief Judge of the Minnesota Court of Appeals and Chief Justice of the Minnesota Supreme Court. Popovich was born in Crosby, Minnesota in 1920. He earned degrees from the University of Minnesota and William Mitchell College of Law (then the St. Paul College of Law) in 1942 and 1947, respectively.