Gregory Lynn Frost (born April 17, 1949) is a United States federal judge.Born in Newark, Ohio, Frost received a B.A. from Wittenberg University in 1971 and a J.D. from Ohio Northern University Pettit College of Law in 1974. He was an Assistant prosecuting attorney of Licking County Prosecuting Attorney's Office, Ohio from 1974 to 1978, entering private practice in Ohio from 1978 to 1983.